bundles/org.simantics.help.core/src/org/simantics/help/core/Activator.java

   1 package org.simantics.help.core;
   2
   3 import java.net.URL;
   4 import java.nio.file.Files;
   5 import java.nio.file.Path;
   6 import java.nio.file.Paths;
   7 import java.nio.file.StandardCopyOption;
   8
   9 import org.eclipse.core.runtime.IPath;
  10 import org.eclipse.core.runtime.Platform;
  11 import org.eclipse.ui.plugin.AbstractUIPlugin;
  12 import org.osgi.framework.Bundle;
  13 import org.osgi.framework.BundleContext;
  14
  15 /**
  16  * The activator class controls the plug-in life cycle
  17  */
  18 public class Activator extends AbstractUIPlugin {
  19
  20         // The plug-in ID
  21         public static final String PLUGIN_ID = "org.simantics.help.core"; //$NON-NLS-1$
  22
  23         public static final String HTML_FOLDER = "html";
  24
  25         // The shared instance
  26         private static Activator plugin;
  27         private static Path directory;
  28
  29         /**
  30          * The constructor
  31          */
  32         public Activator() {
  33         }
  34
  35         /*
  36          * (non-Javadoc)
  37          * @see org.eclipse.ui.plugin.AbstractUIPlugin#start(org.osgi.framework.BundleContext)
  38          */
  39         public void start(BundleContext context) throws Exception {
  40                 super.start(context);
  41                 plugin = this;
  42         Bundle bundle = context.getBundle();
  43         IPath path = Platform.getStateLocation(bundle);
  44         Path p = Paths.get(path.toOSString());
  45         directory = p.resolve(HTML_FOLDER);
  46         if (!Files.exists(directory))
  47             Files.createDirectories(directory);
  48
  49         // Ensure that style.css is inside the html directory
  50         Path css = directory.resolve("style.css");
  51         if (!Files.exists(css)) {
  52             Files.createFile(css);
  53             URL url = bundle.getEntry("css/style.css");
  54             Files.copy(url.openStream(), css, StandardCopyOption.REPLACE_EXISTING);
  55         }
  56         }
  57
  58         /*
  59          * (non-Javadoc)
  60          * @see org.eclipse.ui.plugin.AbstractUIPlugin#stop(org.osgi.framework.BundleContext)
  61          */
  62         public void stop(BundleContext context) throws Exception {
  63                 plugin = null;
  64                 super.stop(context);
  65         }
  66
  67         /**
  68          * Returns the shared instance
  69          *
  70          * @return the shared instance
  71          */
  72         public static Activator getDefault() {
  73                 return plugin;
  74         }
  75
  76     public static Path getHtmlDirectory() {
  77         return directory;
  78     }
  79
  80 }