[apps/shared] Add discard confirmation on table intervals

Change-Id: Id152577c570febf06b4d829fd2723c2a30c3ccd9

apps/shared/interval.cpp

@@ -23,6 +23,10 @@ void Interval::deleteElementAtIndex(int index) {
   m_numberOfElements--;
 }
 
+bool Interval::hasSameParameters(IntervalParameters parameters) {
+  return (m_parameters.start() == parameters.start() && m_parameters.end() == parameters.end() && m_parameters.step() == parameters.step());
+}
+
 double Interval::element(int i) {
   assert(i >= 0 && i < numberOfElements());
   computeElements();

apps/shared/interval.h

@@ -23,6 +23,7 @@ public:
     double m_end;
     double m_step;
   };
+  bool hasSameParameters(IntervalParameters parameters);
   double element(int i);
   IntervalParameters * parameters() { return &m_parameters; }
   void setParameters(IntervalParameters parameters) { m_parameters = parameters; }

apps/shared/interval_parameter_controller.cpp

@@ -13,7 +13,12 @@ IntervalParameterController::IntervalParameterController(Responder * parentRespo
   m_intervalCells{},
   m_title(I18n::Message::IntervalSet),
   m_startMessage(I18n::Message::XStart),
-  m_endMessage(I18n::Message::XEnd)
+  m_endMessage(I18n::Message::XEnd),
+  m_confirmPopUpController(Invocation([](void * context, void * sender) {
+    Container::activeApp()->dismissModalViewController();
+    ((IntervalParameterController *)context)->stackController()->pop();
+    return true;
+  }, this))
 {
   for (int i = 0; i < k_totalNumberOfCell; i++) {
     m_intervalCells[i].setParentResponder(&m_selectableTableView);
@@ -87,6 +92,11 @@ bool IntervalParameterController::handleEvent(Ion::Events::Event event) {
     stackController()->pop();
     return true;
   }
+  if (event == Ion::Events::Back && !m_interval->hasSameParameters(*SharedTempIntervalParameters())) {
+    // Open pop-up to confirm discarding values
+    Container::activeApp()->displayModalViewController(&m_confirmPopUpController, 0.f, 0.f, Metric::ExamPopUpTopMargin, Metric::PopUpRightMargin, Metric::ExamPopUpBottomMargin, Metric::PopUpLeftMargin);
+    return true;
+  }
   return false;
 }
 

apps/shared/interval_parameter_controller.h

@@ -5,6 +5,7 @@
 #include "interval.h"
 #include "float_parameter_controller.h"
 #include <assert.h>
+#include "discard_pop_up_controller.h"
 
 namespace Shared {
 
@@ -33,6 +34,7 @@ private:
   I18n::Message m_title;
   I18n::Message m_startMessage;
   I18n::Message m_endMessage;
+  DiscardPopUpController m_confirmPopUpController;
 };
 
 }