Modify the HTML of the document of the rendered page and reload

Currently I am loading a url into javafx through webengine.load (url). My requirement is to keep the style in tact with the original page. However, once the page is rendered, the fonts are not loaded, and I cannot increase the font sizes. I worked through the following steps to achieve this.

1 Add a listener via the method getLoadWorker for web engine and recover the document object when the State is MANAGED.

2 transform a html string that gives me the whole HTML code of the page in a string including the css.

3. then I do a replacement on the part of css by the actual location of the font (absolute path url) files and reload the HTML through loadContent method.

With that, I'm able to get properly loaded fonts.

Problem:

1. I find myself with an infinite loop when I use the "webEngine.loadContent (string," text/html")" inside the getLoadWorker method.

2. I tried to do that, outside the method getLoadWorker before the webEngine.load (url) , but in this case the string replacement body html is coming as null.

Any help on how to achieve this? Here is my code:

webEngine.getLoadWorker () .stateProperty () .addListener (new ChangeListener < Worker.State > () {}

String htmlBody = null;

@Override

public void changed (ObservableValue <? extends Worker.State > observableValue, Worker.State prevState, Worker.State newState) {}

To change the body of the methods implemented using file | Settings | Templates files.

String htmlBody = null;

int count = 0;

If (newState == Worker.State.SUCCEEDED) {}

browser.requestFocus ();

Get the document of the engine object.

Doc document = webEngine.getDocument ();

try {}

Transformer allows you to convert the object HTML from a string format top of page document.

Transformer transformer = TransformerFactory.newInstance () .newTransformer ();

transformer.setOutputProperty (OutputKeys.OMIT_XML_DECLARATION, "no");

transformer.setOutputProperty (OutputKeys.METHOD, "html");

transformer.setOutputProperty (OutputKeys.INDENT, 'yes');

transformer.setOutputProperty (OutputKeys.ENCODING, "UTF - 8");

transformer.setOutputProperty ("{http://xml.apache.org/xslt} dash-amount","4" ');

OutWriter StringWriter = new StringWriter();

transform. Transform (new DOMSource (doc), new StreamResult (outWriter));

StringBuffer sb = outWriter.getBuffer ();

htmlBody = sb.toString ();

Replace the attribute of the font family of the style section to the actual URL of the font used.

htmlBody = htmlBody.replace ("font family: way", "font family: url (http://1.10.30.45:8080/fonts/Md.ttf)" ");

Load the new HTML string to the engine.

webEngine.loadContent (htmlBody, "text/html");

} catch (Exception ex) {}

ex.printStackTrace ();

}

});

webEngine.load (url);

Add the display of web pages to the scene

getChildren () .add (browser);

What is a single page load?

If so, you should be able to solve the problem with

observableValue.removeListener(this);

just before calling

webEngine.loadContent(htmlBody, "text/html");

Otherwise, you may have to do something pretty ugly: for example, to have a "loadingTransformedHTML" that is false at the start flag. Then in your method changed (...) do

if (newState == WorkerState.SUCCEEDED) {
     if (loadingTransformedHTML) {
          loadingTransformedHTML = false ;
     } else {
          browser.requestFocus();
          // ...
          loadingTransformedHTML = true ;
          webEngine.loadContent(htmlBody, "text/html");
          // ...
     }
}

Tags: Java

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