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Type:
Bug
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Resolution: Unresolved
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Priority:
P3
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Affects Version/s: 8u481, jfx11, jfx21, jfx24, jfx25, jfx26, jfx27
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Component/s: javafx
ADDITIONAL SYSTEM INFORMATION :
Broken in JavaFX 24. Last worked in JavaFX 23.
A DESCRIPTION OF THE PROBLEM :
Animated GIF images displayed in a WebView show only the first frame and do not animate. This occurs regardless of how the GIF is loaded:
<img> tag with file:/// URL via WebEngine.loadContent()
<img> tag with file:/// URL via WebEngine.load() loading an HTML file
<object> and <iframe> tags
This is distinct fromJDK-8167675, which was fixed in Java 9.
The regression may be related to the BitmapImageSource refactoring at WebKit commit 276827@main, which changed how animated image decoding and frame advancement works. OpenJFX's rendering integration may not be handling the new animation callbacks correctly after the WebKit 619.1 upgrade (JDK-8328994).
REGRESSION : Java version that customer using for 24.02
REGRESSION : Last worked in version 23.02
STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
1. Create a WebView
2. Load HTML containing an animated GIF via either loadContent() or load():
<html><body><img src="file:///path/to/animated.gif"/></body></html>
3. Observe that only the first frame is displayed
---------- BEGIN SOURCE ----------
import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.web.WebEngine;
import javafx.scene.web.WebView;
import javafx.stage.Stage;
public class AnimatedGifTest extends Application
{
@Override
public void start(Stage stage)
{
WebView webView = new WebView();
WebEngine engine = webView.getEngine();
engine.loadContent(
"<html><body>" +
"<p>The image below should be animating:</p>" +
"<img src=\"<LINK>\"/>" +
"</body></html>");
stage.setScene(new Scene(webView, 600, 400));
stage.setTitle("Animated GIF Test");
stage.show();
}
public static void main(String[] args)
{
launch(args);
}
}
---------- END SOURCE ----------
CUSTOMER SUBMITTED WORKAROUND :
None
FREQUENCY :
ALWAYS
Broken in JavaFX 24. Last worked in JavaFX 23.
A DESCRIPTION OF THE PROBLEM :
Animated GIF images displayed in a WebView show only the first frame and do not animate. This occurs regardless of how the GIF is loaded:
<img> tag with file:/// URL via WebEngine.loadContent()
<img> tag with file:/// URL via WebEngine.load() loading an HTML file
<object> and <iframe> tags
This is distinct from
The regression may be related to the BitmapImageSource refactoring at WebKit commit 276827@main, which changed how animated image decoding and frame advancement works. OpenJFX's rendering integration may not be handling the new animation callbacks correctly after the WebKit 619.1 upgrade (
REGRESSION : Java version that customer using for 24.02
REGRESSION : Last worked in version 23.02
STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
1. Create a WebView
2. Load HTML containing an animated GIF via either loadContent() or load():
<html><body><img src="file:///path/to/animated.gif"/></body></html>
3. Observe that only the first frame is displayed
---------- BEGIN SOURCE ----------
import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.web.WebEngine;
import javafx.scene.web.WebView;
import javafx.stage.Stage;
public class AnimatedGifTest extends Application
{
@Override
public void start(Stage stage)
{
WebView webView = new WebView();
WebEngine engine = webView.getEngine();
engine.loadContent(
"<html><body>" +
"<p>The image below should be animating:</p>" +
"<img src=\"<LINK>\"/>" +
"</body></html>");
stage.setScene(new Scene(webView, 600, 400));
stage.setTitle("Animated GIF Test");
stage.show();
}
public static void main(String[] args)
{
launch(args);
}
}
---------- END SOURCE ----------
CUSTOMER SUBMITTED WORKAROUND :
None
FREQUENCY :
ALWAYS
- relates to
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- Resolved
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- Resolved
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