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/**
* Copyright 2015-2016 the original author or authors.
*
* Licensed 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.
*/
package org.beryx.viewreka.fxui.chart.html;
import java.util.function.Consumer;
import javafx.scene.layout.Pane;
import javafx.scene.web.WebEngine;
import javafx.scene.web.WebView;
import org.beryx.viewreka.chart.ChartController;
/**
* A chart controller that displays HTML in a {@link WebView}.
* HtmlChartController does not create its own data. Instead, it relies on a {@link WebEngine} consumer that knows how to retrieve the content to be displayed.
* Therefore, {@link #createChartData()} needs only a dummy implementation and {@link #displayChart(String)} ignores its {@code data} argument.
*/
public class HtmlChartController implements ChartController {
private final Consumer webEngineConsumer;
private final WebView webView = new WebView();
/**
* @param chartParentPane that should contain the {@link WebView} used by this chart controller
* @param webEngineConsumer a {@link WebEngine} consumer that knows how to retrieve the content to be displayed, without relying on the value returned by {@link #createChartData()}
*/
public HtmlChartController(Pane chartParentPane, Consumer webEngineConsumer) {
this.webEngineConsumer = webEngineConsumer;
chartParentPane.getChildren().add(webView);
chartParentPane.widthProperty().addListener((obs, oldVal, newVal) -> {webView.setPrefWidth(newVal.doubleValue());});
chartParentPane.heightProperty().addListener((obs, oldVal, newVal) -> {webView.setPrefHeight(newVal.doubleValue());});
}
@Override
public String createChartData() {
return "";
}
@Override
public void displayChart(String data) {
webEngineConsumer.accept(webView.getEngine());
}
}