50 lines
1.2 KiB
JavaScript
50 lines
1.2 KiB
JavaScript
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var _ = require('underscore');
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var legendsMetadata = require('builder/data/legends/legends-metadata');
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var legends;
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var LEGENDS_METADATA = _.keys(legendsMetadata);
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var LEGENDS_COLOR = ['category', 'choropleth'];
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var LegendManager = {
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trackLegends: function (layers) {
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legends = {};
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_.each(layers.models, function (layerModel) {
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var legendsLayer;
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var options = {};
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if (layerModel.legends != null) {
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legendsLayer = layerModel.legends;
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_.each(LEGENDS_METADATA, function (legend) {
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var legendModel = legendsLayer[legend];
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if (legendModel.get('visible') === true) {
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options[legend] = legendModel;
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}
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});
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legends[layerModel.id] = options;
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}
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});
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},
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getLegends: function () {
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return legends;
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},
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updateLegends: function (layerId) {
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var legendsLayer = legends[layerId];
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_.each(LEGENDS_COLOR, function (legend) {
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var legendModel = legendsLayer[legend];
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legendModel && legendModel.set({visible: false});
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});
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},
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resetLegends: function (layerId) {
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var legendsLayer = legends[layerId];
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_.each(legendsLayer, function (legend) {
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legend.set({visible: true});
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});
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}
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};
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module.exports = LegendManager;
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