(refs #1161)Add new extension point to add global menu

src/main/scala/gitbucket/core/plugin/Plugin.scala

@@ -77,6 +77,16 @@ abstract class Plugin {
    */
   def receiveHooks(registry: PluginRegistry, context: ServletContext, settings: SystemSettings): Seq[ReceiveHook] = Nil
 
+  /**
+   * Override to add global menus.
+   */
+  val globalMenus: Seq[GlobalMenu] = Nil
+
+  /**
+   * Override to add global menus.
+   */
+  def globalMenus(registry: PluginRegistry, context: ServletContext, settings: SystemSettings): Seq[GlobalMenu] = Nil
+
   /**
    * This method is invoked in initialization of plugin system.
    * Register plugin functionality to PluginRegistry.
@@ -100,6 +110,9 @@ abstract class Plugin {
     (receiveHooks ++ receiveHooks(registry, context, settings)).foreach { receiveHook =>
       registry.addReceiveHook(receiveHook)
     }
+    (globalMenus ++ globalMenus(registry, context, settings)).foreach { menu =>
+      registry.addGlobalMenu(menu)
+    }
   }
 
   /**

src/main/scala/gitbucket/core/plugin/PluginRegistory.scala

@@ -33,6 +33,8 @@ class PluginRegistry {
   private val receiveHooks = new ListBuffer[ReceiveHook]
   receiveHooks += new ProtectedBranchReceiveHook()
 
+  private val globalMenus = new ListBuffer[GlobalMenu]
+
   def addPlugin(pluginInfo: PluginInfo): Unit = {
     plugins += pluginInfo
   }
@@ -107,17 +109,23 @@ class PluginRegistry {
 
   def getReceiveHooks: Seq[ReceiveHook] = receiveHooks.toSeq
 
-  private case class GlobalAction(
-    method: String,
-    path: String,
-    function: (HttpServletRequest, HttpServletResponse, Context) => Any
-  )
+  def addGlobalMenu(menu: GlobalMenu): Unit = {
+    globalMenus += menu
+  }
 
-  private case class RepositoryAction(
-    method: String,
-    path: String,
-    function: (HttpServletRequest, HttpServletResponse, Context, RepositoryInfo) => Any
-  )
+  def getGlobalMenus: Seq[GlobalMenu] = globalMenus.toSeq
+
+//  private case class GlobalAction(
+//    method: String,
+//    path: String,
+//    function: (HttpServletRequest, HttpServletResponse, Context) => Any
+//  )
+//
+//  private case class RepositoryAction(
+//    method: String,
+//    path: String,
+//    function: (HttpServletRequest, HttpServletResponse, Context, RepositoryInfo) => Any
+//  )
 
 }
 
@@ -201,6 +209,10 @@ object PluginRegistry {
 
 }
 
+abstract class GlobalMenu {
+  def createLink(context: Context): Option[(String, String)]
+}
+
 case class PluginInfo(
   pluginId: String,
   pluginName: String,

src/main/twirl/gitbucket/core/main.scala.html

@@ -71,6 +71,11 @@
               <input type="hidden" name="repository" value="@repository.name"/>
             }
           }
+          @gitbucket.core.plugin.PluginRegistry().getGlobalMenus.map { menu =>
+            @menu.createLink(context).map { case (label, link) =>
+              <a href="@path/@link" class="global-header-menu">@label</a>
+            }
+          }
           @if(loginAccount.isDefined){
             <div class="pull-right" style="margin-top: 6px;">
               <div class="btn-group" style="margin-right: 8px;">