presenter console: add 'Restart Timer' button

Use case is that the presentation is started a few minutes in advance,
so the audience can check if they are at the correct room, seeing the
title side. Then previously the presentation had to be stopped and
started again, so the presenter had an idea how much time the talk took
so far. The side effect of this workaround was that the audience saw a
short flash while the presentation was not running.

Fix this by adding a button to just restart the timer, then it's not
needed to stop/start the presentation manually.

The two icons are just placeholders for now, real design is still
needed.

Change-Id: Id67e7e53a339ea5672dfb1c261f63d43466e9eff

1 files changed, 28 insertions, 0 deletions

diff --git a/sdext/source/presenter/PresenterProtocolHandler.cxx b/sdext/source/presenter/PresenterProtocolHandler.cxx
index 9dbefb239ca3..709a22e66e2d 100644
--- a/sdext/source/presenter/PresenterProtocolHandler.cxx
+++ b/sdext/source/presenter/PresenterProtocolHandler.cxx
@@ -104,6 +104,17 @@ namespace {
         rtl::Reference<PresenterController> mpPresenterController;
     };
 
+    /// This command restarts the presentation timer.
+    class RestartTimerCommand : public Command
+    {
+    public:
+        explicit RestartTimerCommand(const rtl::Reference<PresenterController>& rpPresenterController);
+        virtual ~RestartTimerCommand();
+        virtual void Execute() SAL_OVERRIDE;
+    private:
+        rtl::Reference<PresenterController> mpPresenterController;
+    };
+
     class SetNotesViewCommand : public Command
     {
     public:
@@ -408,6 +419,8 @@ Command* PresenterProtocolHandler::Dispatch::CreateCommand (
         return new GotoPreviousSlideCommand(rpPresenterController);
     if (rsURLPath == "SwitchMonitor")
         return new SwitchMonitorCommand(rpPresenterController);
+    if (rsURLPath == "RestartTimer")
+        return new RestartTimerCommand(rpPresenterController);
     if (rsURLPath == "ShowNotes")
         return new SetNotesViewCommand(true, rpPresenterController);
     if (rsURLPath == "ShowSlideSorter")
@@ -612,6 +625,21 @@ void SwitchMonitorCommand::Execute()
     mpPresenterController->SwitchMonitors();
 }
 
+RestartTimerCommand::RestartTimerCommand (const rtl::Reference<PresenterController>& rpPresenterController)
+: mpPresenterController(rpPresenterController)
+{
+}
+
+RestartTimerCommand::~RestartTimerCommand()
+{
+}
+
+void RestartTimerCommand::Execute()
+{
+    if (IPresentationTime* pPresentationTime = mpPresenterController->GetPresentationTime())
+        pPresentationTime->restart();
+}
+
 //===== SetNotesViewCommand ===================================================
 
 SetNotesViewCommand::SetNotesViewCommand (