@netgrif/components-core
Version:
Netgrif Application engine frontend core Angular library
123 lines • 15.3 kB
JavaScript
import { Subject } from 'rxjs';
import { EditableElementaryPredicate } from './editable-elementary-predicate';
import { IncrementingCounter } from '../../../utility/incrementing-counter';
import { Query } from '../query/query';
import { EditablePredicate } from './editable-predicate';
import { Predicate } from './predicate';
/**
* A complex, editable `Predicate`. Represents an inner node in the predicate tree, that can process changes of `Query` objects
* held by its child nodes. It can notify the parent tree node about changes to the held `Query`.
*/
export class EditableClausePredicate extends EditablePredicate {
_operator;
_bracketSubPredicateText;
_predicates;
_childUpdated$;
_childCounter;
_query;
constructor(_operator, parentNotifier, initiallyVisible = true, _bracketSubPredicateText = false) {
super(parentNotifier, initiallyVisible);
this._operator = _operator;
this._bracketSubPredicateText = _bracketSubPredicateText;
this._predicates = new Map();
this._childUpdated$ = new Subject();
this._childCounter = new IncrementingCounter();
this._query = Query.emptyQuery();
this.initializeFilterTextSegmentsGenerator();
this._childUpdated$.subscribe(() => {
this.updateQueryAndNotify();
});
}
get query() {
return this._query;
}
destroy() {
super.destroy();
this._childUpdated$.complete();
}
show() {
super.show();
this.showAll();
}
/**
* Shows the predicates with the given ids. Skips ids that don't exist.
* @param predicateIds the ids of the predicates that should be shown.
*/
showPredicates(predicateIds) {
predicateIds.forEach(id => {
if (this._predicates.has(id)) {
this._predicates.get(id).show();
}
});
}
/**
* Adds new child predicate of type {@link EditableElementaryPredicate}
* @param initiallyVisible whether the new predicate should be initially visible
*/
addNewElementaryPredicate(initiallyVisible = true) {
return this.addPredicate(new EditableElementaryPredicate(this._childUpdated$, initiallyVisible));
}
/**
* Adds new child predicate of type {@link EditableClausePredicate}
* @param operator the operator of the child clause predicate
* @param initiallyVisible whether the new predicate should be initially visible
*/
addNewClausePredicate(operator, initiallyVisible = true) {
return this.addPredicate(new EditableClausePredicate(operator, this._childUpdated$, initiallyVisible));
}
/**
* Generates an id for the new predicate, adds it into the map and updates the query
*
* If you want to add an editable predicate, use one of the other methods, so that this predicate can react to changes.
* @param predicate the new predicate
*/
addPredicate(predicate) {
const id = this._childCounter.next();
this._predicates.set(id, predicate);
this.updateQueryAndNotify();
return id;
}
removePredicate(id) {
const r = this._predicates.delete(id);
this.updateQueryAndNotify();
return r;
}
getPredicateMap() {
return this._predicates;
}
/**
* Updates the `Query` and notifies the parent.
*/
updateQueryAndNotify() {
this.updateQuery();
this.notifyParentPredicate();
}
/**
* Updates the value of the [_query]{@link ClausePredicate#_query} attribute.
*
* See [combineQueries()]{@link Query#combineQueries} for more information.
*/
updateQuery() {
this._query = Query.combineQueries(this.queries, this._operator);
}
/**
* @returns the `Array` of {@link Query} objects stored within this object's [_predicates]{@link ClausePredicate#_predicates} attribute.
*/
get queries() {
return Array.from(this._predicates.values()).map(p => p.query);
}
/**
* Sets this predicate and all its sub-predicates to visible.
*/
showAll() {
for (const p of this._predicates.values()) {
p.show();
}
}
initializeFilterTextSegmentsGenerator() {
this._filterTextSegmentsGenerator = () => {
return Predicate.combineTextSegmentsWithBooleanOperator(this._predicates.values(), this._operator, this._bracketSubPredicateText);
};
}
}
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Represents an inner node in the predicate tree, that can process changes of `Query` objects\n * held by its child nodes. It can notify the parent tree node about changes to the held `Query`.\n */\nexport class EditableClausePredicate extends EditablePredicate {\n\n    protected _predicates: Map<number, Predicate>;\n    protected _childUpdated$: Subject<void>;\n    protected _childCounter: IncrementingCounter;\n    protected _query: Query;\n\n    constructor(protected _operator: BooleanOperator,\n                parentNotifier?: Subject<void>,\n                initiallyVisible = true,\n                protected _bracketSubPredicateText = false) {\n        super(parentNotifier, initiallyVisible);\n        this._predicates = new Map<number, Predicate>();\n        this._childUpdated$ = new Subject<void>();\n        this._childCounter = new IncrementingCounter();\n        this._query = Query.emptyQuery();\n        this.initializeFilterTextSegmentsGenerator();\n\n        this._childUpdated$.subscribe(() => {\n            this.updateQueryAndNotify();\n        });\n    }\n\n    get query(): Query {\n        return this._query;\n    }\n\n    public destroy(): void {\n        super.destroy();\n        this._childUpdated$.complete();\n    }\n\n    public show() {\n        super.show();\n        this.showAll();\n    }\n\n    /**\n     * Shows the predicates with the given ids. Skips ids that don't exist.\n     * @param predicateIds the ids of the predicates that should be shown.\n     */\n    public showPredicates(predicateIds: Array<number>): void {\n        predicateIds.forEach(id => {\n            if (this._predicates.has(id)) {\n                this._predicates.get(id).show();\n            }\n        });\n    }\n\n    /**\n     * Adds new child predicate of type {@link EditableElementaryPredicate}\n     * @param initiallyVisible whether the new predicate should be initially visible\n     */\n    addNewElementaryPredicate(initiallyVisible = true): number {\n        return this.addPredicate(new EditableElementaryPredicate(this._childUpdated$, initiallyVisible));\n    }\n\n    /**\n     * Adds new child predicate of type {@link EditableClausePredicate}\n     * @param operator the operator of the child clause predicate\n     * @param initiallyVisible whether the new predicate should be initially visible\n     */\n    addNewClausePredicate(operator: BooleanOperator, initiallyVisible = true): number {\n        return this.addPredicate(new EditableClausePredicate(operator, this._childUpdated$, initiallyVisible));\n    }\n\n    /**\n     * Generates an id for the new predicate, adds it into the map and updates the query\n     *\n     * If you want to add an editable predicate, use one of the other methods, so that this predicate can react to changes.\n     * @param predicate the new predicate\n     */\n    public addPredicate(predicate: Predicate): number {\n        const id = this._childCounter.next();\n        this._predicates.set(id, predicate);\n        this.updateQueryAndNotify();\n        return id;\n    }\n\n    removePredicate(id: number): boolean {\n        const r = this._predicates.delete(id);\n        this.updateQueryAndNotify();\n        return r;\n    }\n\n    public getPredicateMap(): Map<number, Predicate> {\n        return this._predicates;\n    }\n\n    /**\n     * Updates the `Query` and notifies the parent.\n     */\n    protected updateQueryAndNotify(): void {\n        this.updateQuery();\n        this.notifyParentPredicate();\n    }\n\n    /**\n     * Updates the value of the [_query]{@link ClausePredicate#_query} attribute.\n     *\n     * See [combineQueries()]{@link Query#combineQueries} for more information.\n     */\n    protected updateQuery(): void {\n        this._query = Query.combineQueries(this.queries, this._operator);\n    }\n\n    /**\n     * @returns the `Array` of {@link Query} objects stored within this object's [_predicates]{@link ClausePredicate#_predicates} attribute.\n     */\n    protected get queries(): Array<Query> {\n        return Array.from(this._predicates.values()).map(p => p.query);\n    }\n\n    /**\n     * Sets this predicate and all its sub-predicates to visible.\n     */\n    protected showAll(): void {\n        for (const p of this._predicates.values()) {\n            p.show();\n        }\n    }\n\n    private initializeFilterTextSegmentsGenerator() {\n        this._filterTextSegmentsGenerator = () => {\n            return Predicate.combineTextSegmentsWithBooleanOperator(this._predicates.values(),\n                this._operator, this._bracketSubPredicateText);\n        };\n    }\n}\n"]}