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WikiLambda Vue component for a ZObject with a string renderer.
@copyright 2020– Abstract Wikipedia team; see AUTHORS.txt
@license MIT
-->
<template>
<div class="ext-wikilambda-zobject-string-renderer">
<!-- If expanded is false, show text field -->
<template v-if="!expanded || !initialized">
<p v-if="!edit" data-testid="rendered-text">
{{ renderedValue }}
</p>
<!-- We capture the change event instead of update:modelValue
to reduce the number of unnecessary calls to the orchestrator -->
<cdx-text-input
v-else
:class="{ 'cdx-text-input--status-error': hasFieldErrors }"
:model-value="renderedValue"
:placeholder="placeholderValue"
data-testid="rendered-text-input"
@change="setRenderedValue"
></cdx-text-input>
<div
v-if="hasFieldErrors"
class="ext-wikilambda-zobject-string-renderer-error"
>
<cdx-message :type="fieldErrors[0].type" :inline="true">
<span v-html="getErrorMessage( fieldErrors[0] )"></span>
</cdx-message>
<a v-if="showExamplesLink" @click="openExamplesDialog">
{{ $i18n( 'wikilambda-string-renderer-examples-title' ).text() }}
</a>
<p
v-if="showErrorFooter"
class="ext-wikilambda-zobject-string-renderer-error-footer"
v-html="$i18n( 'wikilambda-renderer-error-footer-project-chat' ).parse()"
></p>
</div>
</template>
<!-- If expanded is true, show key-value set -->
<template v-else>
<wl-z-object-key-value-set
:row-id="rowId"
:edit="edit"
:depth="depth"
@set-type="setType"
></wl-z-object-key-value-set>
</template>
<!-- Renderer examples dialog -->
<cdx-dialog
:open="showExamplesDialog"
:title="$i18n( 'wikilambda-string-renderer-examples-title' ).text()"
:close-button-label="$i18n( 'wikilamda-toast-close' ).text()"
@update:open="showExamplesDialog = false"
>
<ul class="ext-wikilambda-zobject-string-renderer-examples">
<li v-for="example in renderedExamples" :key="example.testZid">
{{ example.result }}
</li>
</ul>
<template #footer>
<a :href="rendererUrl" target="_blank">{{ getLabel( rendererZid ) }}</a>
</template>
</cdx-dialog>
</div>
</template>
<script>
const Constants = require( '../../Constants.js' ),
CdxDialog = require( '@wikimedia/codex' ).CdxDialog,
CdxMessage = require( '@wikimedia/codex' ).CdxMessage,
CdxTextInput = require( '@wikimedia/codex' ).CdxTextInput,
ZObjectKeyValueSet = require( './ZObjectKeyValueSet.vue' ),
errorUtils = require( '../../mixins/errorUtils.js' ),
typeUtils = require( '../../mixins/typeUtils.js' ).methods,
getValueFromCanonicalZMap = require( '../../mixins/schemata.js' ).methods.getValueFromCanonicalZMap,
hybridToCanonical = require( '../../mixins/schemata.js' ).methods.hybridToCanonical,
mapActions = require( 'vuex' ).mapActions,
mapGetters = require( 'vuex' ).mapGetters;
// @vue/component
module.exports = exports = {
name: 'wl-z-object-string-renderer',
components: {
'cdx-dialog': CdxDialog,
'cdx-message': CdxMessage,
'cdx-text-input': CdxTextInput,
'wl-z-object-key-value-set': ZObjectKeyValueSet
},
mixins: [ errorUtils ],
props: {
rowId: {
type: Number,
required: false,
default: 0
},
edit: {
type: Boolean,
required: true
},
depth: {
type: Number,
required: true
},
type: {
type: String,
required: false,
default: undefined
},
expanded: {
type: Boolean,
required: true
}
},
data: function () {
return {
blankObject: undefined,
initialized: false,
renderedValue: '',
showExamplesDialog: false,
showExamplesLink: false,
showErrorFooter: false,
pendingPromises: []
};
},
computed: $.extend( mapGetters( [
'createObjectByType',
'getCurrentView',
'getLabel',
'getPassingTestZids',
'getParserZid',
'getRendererZid',
'getRendererExamples',
'getStoredObject',
'getUserLangCode',
'getUserLangZid',
'getZObjectAsJsonById',
'isCreateNewPage'
] ), {
/**
* Return the stored type object
*
* @return {Object}
*/
typeObject: function () {
return this.getStoredObject( this.type );
},
/**
* Return renderer function Zid
*
* @return {string}
*/
rendererZid: function () {
return this.getRendererZid( this.type );
},
/**
* Return the url for the renderer wiki page
*
* @return {string}
*/
rendererUrl: function () {
return '/view/' + this.getUserLangCode + '/' + this.rendererZid;
},
/**
* Return parser function Zid
*
* @return {string}
*/
parserZid: function () {
return this.getParserZid( this.type );
},
/**
* Returns the rendered examples in case the renderer
* tests were run.
*
* @return {Array}
*/
renderedExamples: function () {
return this.getRendererExamples( this.rendererZid );
},
/**
* Return a dynamically generated placeholder for the renderer field
* using the available tests for the renderer function. If none are
* available, returns the fallback placeholder message.
*
* @return {string}
*/
placeholderValue: function () {
if ( this.renderedExamples.length > 0 ) {
const example = this.renderedExamples[ 0 ].result;
return this.$i18n( 'wikilambda-string-renderer-field-example', example ).text();
}
return '';
},
/**
* Filters the passing test zids array and returns an array with the
* test objects for those which are wellformed. We consider wellformed
* tests those which have a call to the renderer function on the first
* level, directly under the Test call key/Z20K1.
*
* @return {Array}
*/
validRendererTests: function () {
// We return an empty array if not initialized so that the
// component forces a value change in validRendererTests on expanse
// and collapse, and the watch function is re-run again if it had
// been interrupted. This can happen if there are multiple nested
// ZObjectStringRenderer fields.
if ( !this.initialized ) {
return [];
}
return this.getPassingTestZids( this.rendererZid )
// For each test Zid, get the stored test object
.map( ( zid ) => {
const zobject = this.getStoredObject( zid );
return {
zid,
zobject: zobject ? zobject[ Constants.Z_PERSISTENTOBJECT_VALUE ] : undefined
};
} )
// Filter out undefined or not wellformed test objects
.filter( ( test ) => {
return typeUtils.isTruthyOrEqual( test.zobject, [
Constants.Z_TESTER_CALL,
Constants.Z_FUNCTION_CALL_FUNCTION
], this.rendererZid );
} );
}
} ),
methods: $.extend( mapActions( [
'getTestResults',
'runRendererTest',
'runRenderer',
'runParser',
'setError'
] ), {
/**
* If the object type is changed, surface the event so that
* the ZObjectKeyValue parent component makes the type change.
*
* @param {Object} payload
*/
setType: function ( payload ) {
this.$emit( 'set-type', payload );
},
/**
* Update the local renderedValue variable with the new
* value and trigger the function call to generate the new
* parsed object and set its keys in the global store.
*
* @param {Object} event
*/
setRenderedValue: function ( event ) {
this.renderedValue = event.target.value;
this.generateParsedValue();
},
/**
* Trigger the call to the Renderer function for this type
* passing the current object values, and set the returned string
* in the local renderedValue variable.
*/
generateRenderedValue: function () {
// If we are in view mode, only generate rendered value once.
if ( !this.edit && this.initialized ) {
return;
}
// If we are in edit mode, only generate rendered value if the object is not
// blank. For this we need to wait till the typeObject has been fetched.
if ( this.edit && !this.typeObject ) {
return;
}
// If typeObject is available, initialize the model blank object.
if ( this.typeObject && !this.blankObject ) {
this.initializeBlankObject();
}
const zobject = hybridToCanonical( this.getZObjectAsJsonById( this.rowId ) );
// If zobject is blank, exit renderer.
if ( JSON.stringify( zobject ) === JSON.stringify( this.blankObject ) ) {
return;
}
this.runRenderer( {
rendererZid: this.rendererZid,
zobject,
zlang: this.getUserLangZid
} ).then( ( data ) => {
this.clearRendererError();
const response = data.response[ Constants.Z_RESPONSEENVELOPE_VALUE ];
if ( response === Constants.Z_VOID ) {
// Renderer returned void:
// get error from metadata object and show examples link
this.renderedValue = '';
this.showExamplesLink = ( this.renderedExamples.length > 0 );
const metadata = data.response[ Constants.Z_RESPONSEENVELOPE_METADATA ];
const errorMessage = this.extractErrorMessage( metadata );
this.setRendererError( errorMessage || this.$i18n( 'wikilambda-renderer-unknown-error',
this.rendererZid ).parse() );
} else if ( typeUtils.getZObjectType( response ) !== Constants.Z_STRING ) {
// Renderer returned unexpected type:
// show unexpected result error and project chat footer
this.renderedValue = '';
this.showErrorFooter = true;
this.setRendererError( this.$i18n( 'wikilambda-renderer-unexpected-result-error',
this.rendererZid ).parse() );
} else {
// Success:
// Update the locally saved renderedValue with the response
this.renderedValue = response;
}
} ).catch( () => {
this.clearRendererError();
this.setRendererError( this.$i18n( 'wikilambda-renderer-api-error' ).text() );
} );
},
/**
* Trigger the call to the Parser function for this type
* passing the current rendererValue, and set the returned object
* in the global store.
*/
generateParsedValue: function () {
this.runParser( {
parserZid: this.parserZid,
zobject: this.renderedValue,
zlang: this.getUserLangZid,
wait: true
} ).then( ( data ) => {
this.clearRendererError();
const response = data.response[ Constants.Z_RESPONSEENVELOPE_VALUE ];
if ( response === Constants.Z_VOID ) {
// Parser returned void:
// * Resolve parser promise
// * get error from metadata object and show examples link
data.resolver.resolve();
this.clearParsedValue();
const metadata = data.response[ Constants.Z_RESPONSEENVELOPE_METADATA ];
const errorMessage = this.extractErrorMessage( metadata );
this.showExamplesLink = ( this.renderedExamples.length > 0 );
this.setRendererError( errorMessage || this.$i18n( 'wikilambda-parser-unknown-error',
this.parserZid ).parse() );
} else if ( typeUtils.getZObjectType( response ) !== this.type ) {
// Parser return unexpected type:
// * Resolve parser promise
// * show unexpected result error and project chat footer
data.resolver.resolve();
this.clearParsedValue();
this.showErrorFooter = true;
this.setRendererError( this.$i18n( 'wikilambda-parser-unexpected-result-error',
this.parserZid ).parse() );
} else {
// Success:
// Parent component (ZObjectKeyValue) should:
// * Set the value of the returned ZObject
// * Resolve parser promise once the changes are persisted
this.pendingPromises.push( data.resolver );
this.$emit( 'set-value', {
keyPath: [],
value: response,
callback: () => data.resolver.resolve()
} );E
}
} ).catch( () => {
this.clearRendererError();
this.setRendererError( this.$i18n( 'wikilambda-renderer-api-error' ).text() );
} );
},
/**
* Resets the parsed key-values to a blank state.
* To do this, it emits a setType event with the current type
* which will make the parent ZObjectKeyValue component run
* the changeType action.
*/
clearParsedValue: function () {
this.$emit( 'set-value', {
keyPath: [],
value: this.blankObject
} );
},
/**
* Saves the given error message for current rowId
*
* @param {string} errorMessage
*/
setRendererError: function ( errorMessage ) {
this.setError( {
rowId: this.rowId,
errorType: Constants.errorTypes.ERROR,
errorMessage
} );
},
/**
* Clears renderer field errors
*/
clearRendererError: function () {
this.showExamplesLink = false;
this.showErrorFooter = false;
this.clearFieldErrors();
},
/**
* Runs the test results for the renderer function. This
* call must be treated asynchronously, so all the results
* will be gathered as reactive computed properties.
*/
generateRendererExamples: function () {
if ( this.edit ) {
this.getTestResults( {
zFunctionId: this.rendererZid
} ).then( () => {
// At this point getPassingTestZids is already returning the existing tests.
// If none exist and we are creating a new object, expand to key-value set
const setExpanded = (
( this.isCreateNewPage || this.getCurrentView === Constants.VIEWS.FUNCTION_EVALUATOR ) &&
( this.getPassingTestZids( this.rendererZid ).length === 0 )
);
this.$emit( 'expand', setExpanded );
this.initialized = true;
} );
} else {
this.$emit( 'expand', false );
this.initialized = true;
}
},
/**
* Given a metadata object of a failed function call, extracts the value
* of the Z500K1 key and, if it contains a message, returns it
*
* @param {Object} metadata
* @return {string}
*/
extractErrorMessage: function ( metadata ) {
const error = getValueFromCanonicalZMap( metadata, 'errors' );
const errorInfo = error[ Constants.Z_ERROR_VALUE ][ Constants.Z_GENERIC_ERROR_VALUE ];
return ( ( typeof errorInfo === 'string' ) && ( !!errorInfo ) ) ? errorInfo : undefined;
},
/**
* Opens the dialog with the renderer examples, if any.
*/
openExamplesDialog: function () {
this.showExamplesDialog = true;
},
/**
* Create the model for a blank object of this type and store it locally.
* This initialization will only be run once, and only when we know for
* sure that the typeObject is available.
*/
initializeBlankObject: function () {
this.blankObject = this.createObjectByType( { type: this.type } );
}
} ),
watch: {
/**
* Watch the prop expanded. When the field is collapsed
* generate the rendered value. When the field is expanded
* we clear the renderer errors.
*
* @param {boolean} value
*/
expanded: function ( value ) {
if ( value === false ) {
this.generateRenderedValue();
} else {
this.clearRendererError();
}
},
/**
* Watch the computed property validRendererTests and whenever those
* are updated, run the renderer function test with the user language
* as second input.
*
* @param {Array} tests
*/
validRendererTests: function ( tests ) {
for ( const test of tests ) {
this.runRendererTest( {
rendererZid: this.rendererZid,
testZid: test.zid,
test: test.zobject,
zlang: this.getUserLangZid
} );
}
},
/**
* Watch the typeObject and whenever it's updated, generate the
* rendered value, in case the initial generateRenderedValue call
* is called before the type object has been fetched.
*/
typeObject: function () {
this.generateRenderedValue();
}
},
mounted: function () {
this.generateRenderedValue();
this.generateRendererExamples();
},
beforeUnmount: function () {
// In the case of an abrupt unmount, resolve all pending promises
this.pendingPromises.forEach( ( resolver ) => {
resolver.resolve();
} );
}
};
</script>
<style lang="less">
@import '../../ext.wikilambda.edit.less';
.ext-wikilambda-zobject-string-renderer {
.ext-wikilambda-zobject-string-renderer-error {
margin-top: @spacing-25;
.ext-wikilambda-zobject-string-renderer-error-footer {
margin: 0;
color: @color-subtle;
}
}
}
</style>
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