| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * 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. |
| */ |
| |
| /** |
| * LegendVisualProvider is an bridge that pick encoded color from data and |
| * provide to the legend component. |
| * @param {Function} getDataWithEncodedVisual Function to get data after filtered. It stores all the encoding info |
| * @param {Function} getRawData Function to get raw data before filtered. |
| */ |
| function LegendVisualProvider(getDataWithEncodedVisual, getRawData) { |
| this.getAllNames = function () { |
| var rawData = getRawData(); // We find the name from the raw data. In case it's filtered by the legend component. |
| // Normally, the name can be found in rawData, but can't be found in filtered data will display as gray. |
| |
| return rawData.mapArray(rawData.getName); |
| }; |
| |
| this.containName = function (name) { |
| var rawData = getRawData(); |
| return rawData.indexOfName(name) >= 0; |
| }; |
| |
| this.indexOfName = function (name) { |
| // Only get data when necessary. |
| // Because LegendVisualProvider constructor may be new in the stage that data is not prepared yet. |
| // Invoking Series#getData immediately will throw an error. |
| var dataWithEncodedVisual = getDataWithEncodedVisual(); |
| return dataWithEncodedVisual.indexOfName(name); |
| }; |
| |
| this.getItemVisual = function (dataIndex, key) { |
| // Get encoded visual properties from final filtered data. |
| var dataWithEncodedVisual = getDataWithEncodedVisual(); |
| return dataWithEncodedVisual.getItemVisual(dataIndex, key); |
| }; |
| } |
| |
| export default LegendVisualProvider; |