lib/jldrill/contexts/DisplayProblemContext.rb in jldrill-0.5.1.7 vs lib/jldrill/contexts/DisplayProblemContext.rb in jldrill-0.6.0.1

@@ -1,5 +1,6 @@
+# encoding: utf-8
 require 'Context/Context'
 require 'Context/Bridge'
 require 'Context/View'
 require 'jldrill/contexts/behaviour/SearchDictionary'
 
@@ -67,10 +68,18 @@
 
             # Show the answer to the problem
             def showAnswer
                 # Should be overridden in the concrete class
             end
+            
+            # Show the busy cursor in the UI if bool is true.
+            # This happens during a long event where the user can't
+            # interact with the window
+            def showBusy(bool)
+                # Please define in the concrete class
+            end
+
         end
 
         def createViews
             @mainView = @viewBridge.ProblemView.new(self)
         end
@@ -88,10 +97,12 @@
                     @parent.quiz.publisher.subscribe(self, "problemModified")
                 end
                 if !@parent.reference.nil?
                     @parent.reference.publisher.subscribe(self, "edictLoad")
                 end
+                @parent.longEventPublisher.subscribe(self, "startLongEvent")
+                @parent.longEventPublisher.subscribe(self, "stopLongEvent")
                 newProblemUpdated(@parent.quiz.currentProblem)
             end
 		end
 		
 		def exit
@@ -102,10 +113,12 @@
                     @parent.quiz.publisher.unsubscribe(self, "problemModified")
                 end
                 if !@parent.reference.nil?
                     @parent.reference.publisher.unsubscribe(self, "edictLoad")
                 end
+                @parent.longEventPublisher.unsubscribe(self, "startLongEvent")
+                @parent.longEventPublisher.unsubscribe(self, "stopLongEvent")
             end
 		    super
 		end
 
         def differs?(problem)
@@ -133,9 +146,17 @@
 
 		def edictLoadUpdated(reference)
             quiz = @parent.quiz
             @mainView.updateProblem(quiz.currentProblem)
 		end
+
+        def startLongEventUpdated(source)
+            @mainView.showBusy(true)
+        end
+
+        def stopLongEventUpdated(source)
+            @mainView.showBusy(false)
+        end
 
         def showAnswer
             @mainView.showAnswer
         end