private void bindServiceToControl(ServiceAndTask demoControl, Service<String> service) {
demoControl.startService.setOnMouseClicked(
(val) -> {
if (!service.isRunning()) {
service.reset();
service.start();
demoControl.labelService.textProperty().bind(service.messageProperty());
}
});
demoControl.labelService.textProperty().bind(service.messageProperty());
service.addEventHandler(
WorkerStateEvent.WORKER_STATE_SUCCEEDED,
(val) -> {
demoControl.labelService.textProperty().unbind();
demoControl.labelService.setText(service.getValue());
});
demoControl.progressService.progressProperty().bind(service.progressProperty());
}
@FXML
private void updateRender() {
if (renderTask != null) {
if (renderTask.isRunning()) {
renderTask.cancel();
}
}
WebEngine webEngine = renderView.getEngine();
webEngine
.getLoadWorker()
.stateProperty()
.addListener(
(ObservableValue<? extends State> ov, State oldState, State newState) -> {
if (newState == State.SUCCEEDED) {
scrollTo(renderView, xRenderPosition, yRenderPosition);
}
});
renderTask =
new Service<String>() {
@Override
protected Task<String> createTask() {
return new Task<String>() {
@Override
protected String call() {
StringBuilder content = new StringBuilder();
content.append("<!doctype html><html><head><meta charset='utf-8'><base href='");
if (!isCancelled()) {
content.append(MainApp.class.getResource("assets").toExternalForm());
}
content.append("/' />");
content.append("<link rel=\"stylesheet\" href=\"");
content.append(MainApp.class.getResource("css/content.css").toExternalForm());
content.append("\" />");
content.append("<link rel=\"stylesheet\" href=\"");
content.append(MainApp.class.getResource("assets/static").toExternalForm());
content.append("/js/katex/katex.min.css\" />");
content
.append("<script src=\"")
.append(MainApp.class.getResource("assets/static").toExternalForm());
content.append("/js/katex/katex.min.js\"></script>");
content
.append("<script src=\"")
.append(MainApp.class.getResource("assets/static").toExternalForm());
content.append("/js/katex/contrib/auto-render.min.js\"></script>");
content.append("</head><body>");
if (!isCancelled()) {
content.append(markdownToHtml(SourceText.getText()));
}
content.append(
"<script>"
+ "renderMathInElement("
+ "document.body,"
+ "{"
+ "delimiters: ["
+ "{left: \"$$\", right: \"$$\", display: true},"
+ "{left: \"$\", right: \"$\", display: false},"
+ "]"
+ "}"
+ ");"
+ "</script>");
content.append("</body></html>");
return content.toString();
}
};
}
};
renderTask
.stateProperty()
.addListener(
(ObservableValue<? extends Worker.State> observableValue,
Worker.State oldValue,
Worker.State newValue) -> {
switch (newValue) {
case FAILED:
break;
case CANCELLED:
break;
case SUCCEEDED:
yRenderPosition = getVScrollValue(renderView);
xRenderPosition = getHScrollValue(renderView);
webEngine.loadContent(renderTask.valueProperty().getValue());
break;
}
});
renderTask.start();
}