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java.lang.Objectorg.faceless.pdf2.viewer2.ViewerFeature
org.faceless.pdf2.viewer2.feature.BackgroundSignatureVerifier
public class BackgroundSignatureVerifier
This feature will cause signatures in the PDF to be verified automatically when a PDF is loaded by the viewer, using a thread that runs transparently in the background. The name of this feature is BackgroundSignatureVerifier
This code is copyright the Big Faceless Organization. You're welcome to use, modify and distribute it in any form in your own projects, provided those projects continue to make use of the Big Faceless PDF library.
Constructor Summary | |
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BackgroundSignatureVerifier()
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Method Summary | |
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void |
documentUpdated(DocumentPanelEvent event)
Called when an DocumentPanelEvent is raised |
void |
initialize(PDFViewer viewer)
Called when the feature is first added to a viewer |
boolean |
isEnabledByDefault()
Return true if this feature is enabled by default (the default). |
boolean |
isPaused()
Return true if the task has been paused with the PDFBackgroundTask.pause() method |
boolean |
isRunning()
Returns true if the task is still running |
void |
pause()
Pause the task until the PDFBackgroundTask.unpause() method is called. |
void |
startVerification(DocumentPanel docpanel,
Collection fields)
Start a background thread that runs the verify() method |
void |
unpause()
Unpause the task after a call to PDFBackgroundTask.pause() |
void |
verify(DocumentPanel docpanel,
Collection fields)
Verify the specified collection of fields. |
Methods inherited from class org.faceless.pdf2.viewer2.ViewerFeature |
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getAllEnabledFeatures, getAllFeatures, getCustomJavaScript, getFeatureProperty, getFeatureURLProperty, getName, setFeatureName, teardown, toString |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Constructor Detail |
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public BackgroundSignatureVerifier()
Method Detail |
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public void initialize(PDFViewer viewer)
ViewerFeature
initialize
in class ViewerFeature
public boolean isEnabledByDefault()
ViewerFeature
ViewerFeature.getAllEnabledFeatures()
and by the PDFViewerApplet
and PDFTool
isEnabledByDefault
in class ViewerFeature
public void documentUpdated(DocumentPanelEvent event)
DocumentPanelListener
DocumentPanelEvent
is raised
documentUpdated
in interface DocumentPanelListener
public boolean isPaused()
PDFBackgroundTask
PDFBackgroundTask.pause()
method
isPaused
in interface PDFBackgroundTask
public boolean isRunning()
PDFBackgroundTask
isRunning
in interface PDFBackgroundTask
public void pause()
PDFBackgroundTask
PDFBackgroundTask.unpause()
method is called.
This method waits until the task has actually paused.
pause
in interface PDFBackgroundTask
public void unpause()
PDFBackgroundTask
PDFBackgroundTask.pause()
unpause
in interface PDFBackgroundTask
public void startVerification(DocumentPanel docpanel, Collection fields)
verify()
method
docpanel
- the DocumentPanel containing the signatures being verifiedfields
- a Collection containing the fields to verifypublic void verify(DocumentPanel docpanel, Collection fields)
SignatureProvider
can be found that canVerify()
them.
docpanel
- the DocumentPanel containing the signatures being verifiedfields
- a Collection containing the fields to verify. Only signed FormSignature
fields from this Collection will be checked, so it's safe to pass
pdf.getForm().getElements().values()
to check all fields
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