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

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