wisemapping-frontend/packages/mindplot/lib/components/commands/AddFeatureToTopicCommand.js

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/*
* Copyright [2015] [wisemapping]
*
* Licensed under WiseMapping Public License, Version 1.0 (the "License").
* It is basically the Apache License, Version 2.0 (the "License") plus the
* "powered by wisemapping" text requirement on every single page;
* you may not use this file except in compliance with the License.
* You may obtain a copy of the license at
*
* http://www.wisemapping.org/license
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
const Command = require('../Command').default;
const AddFeatureToTopicCommand = new Class(/** @lends AddFeatureToTopicCommand */{
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Extends: Command,
/**
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* @classdesc This command class handles do/undo of adding features to topics, e.g. an
* icon or a note. For a reference of existing features, refer to {@link mindplot.TopicFeature}
* @constructs
* @param {String} topicId the id of the topic
* @param {String} featureType the id of the feature type to add, e.g. "icon"
* @param {Object} attributes the attribute(s) of the respective feature model
* @extends mindplot.Command
* @see mindplot.model.FeatureModel and subclasses
*/
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initialize(topicId, featureType, attributes) {
$assert($defined(topicId), 'topicId can not be null');
$assert(featureType, 'featureType can not be null');
$assert(attributes, 'attributes can not be null');
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this.parent();
this._topicId = topicId;
this._featureType = featureType;
this._attributes = attributes;
this._featureModel = null;
},
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/**
* Overrides abstract parent method
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*/
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execute(commandContext) {
const topic = commandContext.findTopics(this._topicId)[0];
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// Feature must be created only one time.
if (!this._featureModel) {
const model = topic.getModel();
this._featureModel = model.createFeature(this._featureType, this._attributes);
}
topic.addFeature(this._featureModel);
},
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/**
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* Overrides abstract parent method
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* @see {@link mindplot.Command.undoExecute}
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*/
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undoExecute(commandContext) {
const topic = commandContext.findTopics(this._topicId)[0];
topic.removeFeature(this._featureModel);
},
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});
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export default AddFeatureToTopicCommand;