forked from CIT/Vmeda.Online
71 lines
2.7 KiB
TypeScript
71 lines
2.7 KiB
TypeScript
// (C) Copyright 2015 Moodle Pty Ltd.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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import { Injector } from '@angular/core';
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import { CoreQuestionBehaviourHandler } from '../providers/behaviour-delegate';
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import { CoreQuestionProvider, CoreQuestionState } from '@core/question/providers/question';
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/**
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* Base handler for question behaviours.
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*
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* This class is needed because parent classes cannot have @Injectable in Angular v6, so the default handler cannot be a
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* parent class.
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*/
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export class CoreQuestionBehaviourBaseHandler implements CoreQuestionBehaviourHandler {
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name = 'CoreQuestionBehaviourBase';
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type = 'base';
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constructor(protected questionProvider: CoreQuestionProvider) { }
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/**
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* Determine a question new state based on its answer(s).
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*
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* @param component Component the question belongs to.
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* @param attemptId Attempt ID the question belongs to.
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* @param question The question.
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* @param componentId Component ID.
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* @param siteId Site ID. If not defined, current site.
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* @return New state (or promise resolved with state).
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*/
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determineNewState(component: string, attemptId: number, question: any, componentId: string | number, siteId?: string)
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: CoreQuestionState | Promise<CoreQuestionState> {
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// Return the current state.
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return this.questionProvider.getState(question.state);
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}
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/**
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* Handle a question behaviour.
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* If the behaviour requires a submit button, it should add it to question.behaviourButtons.
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* If the behaviour requires to show some extra data, it should return the components to render it.
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*
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* @param injector Injector.
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* @param question The question.
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* @return Components (or promise resolved with components) to render some extra data in the question
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* (e.g. certainty options). Don't return anything if no extra data is required.
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*/
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handleQuestion(injector: Injector, question: any): any[] | Promise<any[]> {
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// Nothing to do.
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return;
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}
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/**
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* Whether or not the handler is enabled on a site level.
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*
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* @return True or promise resolved with true if enabled.
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*/
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isEnabled(): boolean | Promise<boolean> {
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return true;
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}
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}
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