75 lines
3.0 KiB
JavaScript
75 lines
3.0 KiB
JavaScript
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/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. 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,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. 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,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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/**
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* LegendVisualProvider is an bridge that pick encoded color from data and
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* provide to the legend component.
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* @param {Function} getDataWithEncodedVisual Function to get data after filtered. It stores all the encoding info
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* @param {Function} getRawData Function to get raw data before filtered.
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*/
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function LegendVisualProvider(getDataWithEncodedVisual, getRawData) {
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this.getAllNames = function () {
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var rawData = getRawData(); // We find the name from the raw data. In case it's filtered by the legend component.
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// Normally, the name can be found in rawData, but can't be found in filtered data will display as gray.
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return rawData.mapArray(rawData.getName);
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};
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this.containName = function (name) {
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var rawData = getRawData();
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return rawData.indexOfName(name) >= 0;
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};
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this.indexOfName = function (name) {
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// Only get data when necessary.
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// Because LegendVisualProvider constructor may be new in the stage that data is not prepared yet.
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// Invoking Series#getData immediately will throw an error.
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var dataWithEncodedVisual = getDataWithEncodedVisual();
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return dataWithEncodedVisual.indexOfName(name);
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};
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this.getItemVisual = function (dataIndex, key) {
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// Get encoded visual properties from final filtered data.
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var dataWithEncodedVisual = getDataWithEncodedVisual();
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return dataWithEncodedVisual.getItemVisual(dataIndex, key);
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};
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}
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var _default = LegendVisualProvider;
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module.exports = _default;
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