X-Git-Url: http://gitweb.fperrin.net/?p=GpsPrune.git;a=blobdiff_plain;f=src%2Ftim%2Fprune%2Ffunction%2FCheckVersionScreen.java;fp=src%2Ftim%2Fprune%2Ffunction%2FCheckVersionScreen.java;h=701937d4b5f23066586cbab4dc55727195544907;hp=0000000000000000000000000000000000000000;hb=ce6f2161b8596f7018d6a76bff79bc9e571f35fd;hpb=2d8cb72e84d5cc1089ce77baf1e34ea3ea2f8465

diff --git a/src/tim/prune/function/CheckVersionScreen.java b/src/tim/prune/function/CheckVersionScreen.java
new file mode 100644
index 0000000..701937d
--- /dev/null
+++ b/src/tim/prune/function/CheckVersionScreen.java
@@ -0,0 +1,113 @@
+package tim.prune.function;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.URL;
+import java.text.DateFormat;
+import java.text.ParseException;
+import java.text.SimpleDateFormat;
+import java.util.Properties;
+import javax.swing.JOptionPane;
+
+import tim.prune.App;
+import tim.prune.GenericFunction;
+import tim.prune.GpsPrune;
+import tim.prune.I18nManager;
+import tim.prune.function.browser.BrowserLauncher;
+
+/**
+ * Class to check the version of GpsPrune
+ * and show an appropriate dialog
+ */
+public class CheckVersionScreen extends GenericFunction
+{
+	/**
+	 * Constructor
+	 * @param inApp app object
+	 */
+	public CheckVersionScreen(App inApp)
+	{
+		super(inApp);
+	}
+
+	/**
+	 * Get the name key
+	 */
+	public String getNameKey() {
+		return "function.checkversion";
+	}
+
+	/**
+	 * Show the check version dialog
+	 */
+	public void begin()
+	{
+		final String filePathStart = "https://activityworkshop.net/software/gpsprune/gpsprune_versioncheck_";
+		final String filePathEnd = ".txt";
+		String latestVer = null;
+		String nextVersion = null;
+		String releaseDate = null;
+		Properties props = new Properties();
+		try
+		{
+			// Load properties from the url on the server
+			InputStream inStream = new URL(filePathStart + GpsPrune.VERSION_NUMBER + filePathEnd).openStream();
+			props.load(inStream);
+
+			// Extract the three fields we want, ignore others
+			latestVer = props.getProperty("prune.latestversion");
+			nextVersion = props.getProperty("prune.nextversion");
+			releaseDate = props.getProperty("prune.releasedate");
+		}
+		catch (IOException ioe) {
+			System.err.println(ioe.getClass().getName() + " - " + ioe.getMessage());
+		}
+
+		if (latestVer == null) {
+			// Couldn't get version number, show error message
+			JOptionPane.showMessageDialog(_parentFrame, I18nManager.getText("dialog.checkversion.error"),
+				I18nManager.getText(getNameKey()), JOptionPane.ERROR_MESSAGE);
+		}
+		else if (latestVer.equals(GpsPrune.VERSION_NUMBER))
+		{
+			// Version on the server is the same as this one
+			String displayMessage = I18nManager.getText("dialog.checkversion.uptodate");
+			if (nextVersion != null && !nextVersion.equals(""))
+			{
+				displayMessage += "\n\n" + nextVersion;
+			}
+			// Show information message that the current version is already running
+			JOptionPane.showMessageDialog(_parentFrame, displayMessage,
+				I18nManager.getText(getNameKey()), JOptionPane.INFORMATION_MESSAGE);
+		}
+		else
+		{
+			// A new version is available!
+			String displayMessage = I18nManager.getText("dialog.checkversion.newversion1") + " " + latestVer
+				+ " " + I18nManager.getText("dialog.checkversion.newversion2");
+			try
+			{
+				if (releaseDate != null && !releaseDate.equals("")) {
+					displayMessage += "\n\n" + I18nManager.getText("dialog.checkversion.releasedate1") + " "
+						+ DateFormat.getDateInstance(DateFormat.LONG).format(new SimpleDateFormat("y-M-d").parse(releaseDate))
+						+ " " + I18nManager.getText("dialog.checkversion.releasedate2");
+				}
+			}
+			catch (ParseException pe) {
+				System.err.println("Oops, couldn't parse date: '" + releaseDate + "'");
+			}
+			displayMessage += "\n\n" + I18nManager.getText("dialog.checkversion.download");
+
+			// Show information message to download the new version
+			Object[] buttonTexts = {I18nManager.getText("button.showwebpage"), I18nManager.getText("button.cancel")};
+			if (JOptionPane.showOptionDialog(_parentFrame, displayMessage,
+					I18nManager.getText(getNameKey()), JOptionPane.YES_NO_OPTION,
+					JOptionPane.INFORMATION_MESSAGE, null, buttonTexts, buttonTexts[1])
+				== JOptionPane.YES_OPTION)
+			{
+				// User selected to launch home page
+				BrowserLauncher.launchBrowser("https://activityworkshop.net/software/gpsprune/download.html");
+			}
+		}
+	}
+}