Package uk.ac.starlink.topcat
Class DownloadDialog
- java.lang.Object
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- uk.ac.starlink.topcat.DownloadDialog
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public abstract class DownloadDialog extends java.lang.Object
Provides a dialogue that disposes of a URL by downloading the resource to a location specified interactively by the user.- Since:
- 15 Jun 2018
- Author:
- Mark Taylor
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Constructor Summary
Constructors Constructor Description DownloadDialog()
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Method Summary
All Methods Static Methods Instance Methods Abstract Methods Concrete Methods Modifier and Type Method Description abstract java.io.File
chooseFileEdt()
Acquires a destination File for a downloaded resource by interacting with the user.static DownloadDialog
createSwingDialog(java.awt.Component parent)
Returns an instance of this class based on a Swing JFileChooser.static DownloadDialog
createSystemDialog(java.awt.Component parent)
Returns an instance of this class based on an AWT FileDialog.Outcome
userDownload(java.net.URL url)
Downloads the resource from a given URL to a file selected interactively by the user.
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Method Detail
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chooseFileEdt
public abstract java.io.File chooseFileEdt()
Acquires a destination File for a downloaded resource by interacting with the user. This method is invoked on the Event Dispatch Thread.- Returns:
- user-selected destination file, or null if the operation is cancelled
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userDownload
public Outcome userDownload(java.net.URL url)
Downloads the resource from a given URL to a file selected interactively by the user. This method is not invoked on the Event Dispatch Thread.- Parameters:
url
- location of resource to download- Returns:
- operation outcome
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createSystemDialog
public static DownloadDialog createSystemDialog(java.awt.Component parent)
Returns an instance of this class based on an AWT FileDialog. This provides less consistency, but possibly tighter system interaction.- Parameters:
parent
- parent component- Returns:
- dialog
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createSwingDialog
public static DownloadDialog createSwingDialog(java.awt.Component parent)
Returns an instance of this class based on a Swing JFileChooser. This provides a GUI that is consistent between different platforms.- Parameters:
parent
- parent component- Returns:
- dialog
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