Use system hunspell dictionary if it exists for the selected lang

lib/jitsi-defaults.properties

@@ -31,4 +31,7 @@ net.java.sip.communicator.service.protocol.jabber.AUTO_DISCOVER_JINGLE_NODES=tru
 net.java.sip.communicator.service.protocol.jabber.ALLOW_NON_SECURE=false
 net.java.sip.communicator.service.protocol.jabber.GMAIL_NOTIFICATIONS_ENABLED=false
 net.java.sip.communicator.service.protocol.jabber.BYPASS_GTALK_CAPABILITIES=false
-net.java.sip.communicator.service.protocol.jabber.GOOGLE_CONTACTS_ENABLED=true
+net.java.sip.communicator.service.protocol.jabber.GOOGLE_CONTACTS_ENABLED=true
+
+#Spellchecker config
+net.java.sip.communicator.plugin.spellcheck.SYSTEM_HUNSPELL_DIR=/usr/share/hunspell

src/net/java/sip/communicator/plugin/spellcheck/Parameters.java

@@ -236,6 +236,19 @@ public String getIsoCode()
             return this.isoCode;
         }
 
+        /**
+         * Gets the ICU locale, which is a combination of the ISO code and the
+         * country variant. English for the United States is therefore en_US,
+         * German for Switzerland de_CH.
+         * 
+         * @return ICU locale
+         */
+        public String getIcuLocale()
+        {
+            String[] parts = this.isoCode.split(",");
+            return parts[0].toLowerCase() + "_" + parts[1].toUpperCase();
+        }
+
         /**
          * Provides the url where the dictionary resource can be found for this
          * language.

src/net/java/sip/communicator/plugin/spellcheck/SpellChecker.java

@@ -17,6 +17,7 @@
 
 import org.dts.spell.dictionary.*;
 import org.jitsi.service.fileaccess.*;
+import org.jitsi.util.OSUtils;
 import org.osgi.framework.*;
 
 import javax.swing.*;
@@ -51,6 +52,12 @@ class SpellChecker
     // filename of custom dictionary (added words)
     private static final String PERSONAL_DICT_NAME = "custom.per";
 
+    /**
+     * System directory for hunspell-dictionaries.
+     */
+    private static final String SYSTEM_HUNSPELL_DIR
+        = "net.java.sip.communicator.plugin.spellcheck.SYSTEM_HUNSPELL_DIR";
+
     /*-
      * Dictionary resources.
      * Note: Dictionary needs to be created with input streams that AREN'T CLOSED
@@ -350,11 +357,27 @@ void setLocale(Parameters.Locale locale) throws Exception
 
             File dictLocation = getLocalDictForLocale(locale);
             InputStream dictInput = null;
+            InputStream affInput = null;
+
+            if (OSUtils.IS_LINUX && !dictLocation.exists())
+            {
+                String sysDir =
+                    SpellCheckActivator.getConfigService().getString(
+                        SYSTEM_HUNSPELL_DIR);
+                File systemDict =
+                    new File(sysDir, locale.getIcuLocale() + ".dic");
+                if (systemDict.exists())
+                {
+                    dictInput = new FileInputStream(systemDict);
+                    affInput = new FileInputStream(new File(sysDir,
+                            locale.getIcuLocale() + ".aff"));
+                }
+            }
 
-            // downloads dictionary if unavailable (not cached)
-            if (!dictLocation.exists())
+            if (!dictLocation.exists() && dictInput == null)
             {
                 boolean dictFound = false;
+
                 // see if the requested locale is a built-in that doesn't
                 // need to be downloaded
                 @SuppressWarnings ("unchecked")
@@ -379,13 +402,13 @@ void setLocale(Parameters.Locale locale) throws Exception
                     }
                 }
 
+                // downloads dictionary if unavailable (not cached)
                 if (!dictFound)
                 {
                     copyDictionary(locale.getDictUrl().openStream(),
                         dictLocation);
                 }
             }
-            
 
             if (dictInput == null)
             {
@@ -395,9 +418,18 @@ void setLocale(Parameters.Locale locale) throws Exception
             // resets dictionary being used to include changes
             synchronized (this.attachedChats)
             {
-                SpellDictionary dict =
-                    new OpenOfficeSpellDictionary(dictInput,
+                SpellDictionary dict;
+                if (affInput == null)
+                {
+                    dict = new OpenOfficeSpellDictionary(dictInput,
                         this.personalDictLocation);
+                }
+                else
+                {
+                    dict =
+                        new OpenOfficeSpellDictionary(affInput, dictInput,
+                            personalDictLocation, true);
+                }
 
                 this.dict = dict;
                 this.dictLocation = dictLocation;

src/net/java/sip/communicator/plugin/spellcheck/spellCheck.manifest.mf

@@ -5,6 +5,7 @@ Bundle-Vendor: jitsi.org
 Bundle-Version: 0.0.1
 Import-Package: org.osgi.framework,
  net.java.sip.communicator.util,
+ org.jitsi.util,
  org.jitsi.service.configuration,
  org.jitsi.service.fileaccess,
  net.java.sip.communicator.service.gui,