From 9924fc101558a45543e65aaa04d0dc7f774bbf29 Mon Sep 17 00:00:00 2001
From: Lukas Roedl <lukas.roedl@ait.ac.at>
Date: Thu, 26 Nov 2020 15:11:18 +0100
Subject: [PATCH] Add callback onStepBegin

---
 .../quickbirdstudios/example/ui/main/MainActivity.kt  | 10 ++++++++++
 .../com.quickbirdstudios.surveykit/survey/Survey.kt   |  1 +
 .../survey/SurveyView.kt                              | 11 +++++++++++
 3 files changed, 22 insertions(+)

diff --git a/example/src/main/java/com/quickbirdstudios/example/ui/main/MainActivity.kt b/example/src/main/java/com/quickbirdstudios/example/ui/main/MainActivity.kt
index 04cd3b4..b879390 100644
--- a/example/src/main/java/com/quickbirdstudios/example/ui/main/MainActivity.kt
+++ b/example/src/main/java/com/quickbirdstudios/example/ui/main/MainActivity.kt
@@ -201,6 +201,16 @@ class MainActivity : AppCompatActivity() {
             }
         }
 
+        surveyView.onStepBegin = { step ->
+            when (step) {
+                is QuestionStep -> {
+                    Log.w ("ASDF", "step '${step?.id}': ${step.title} (${step.text})")
+                }
+                else ->
+                    Log.w ("ASDF", "step '${step?.id}'")
+            }
+        }
+
         val configuration = SurveyTheme(
             themeColorDark = ContextCompat.getColor(this, R.color.cyan_dark),
             themeColor = ContextCompat.getColor(this, R.color.cyan_normal),
diff --git a/survey/src/main/java/com.quickbirdstudios.surveykit/survey/Survey.kt b/survey/src/main/java/com.quickbirdstudios.surveykit/survey/Survey.kt
index 436b015..ad8e5e5 100644
--- a/survey/src/main/java/com.quickbirdstudios.surveykit/survey/Survey.kt
+++ b/survey/src/main/java/com.quickbirdstudios.surveykit/survey/Survey.kt
@@ -8,6 +8,7 @@ import com.quickbirdstudios.surveykit.result.TaskResult
 import com.quickbirdstudios.surveykit.steps.Step
 
 internal interface Survey {
+    var onStepBegin: (Step?) -> Unit
     var onStepResult: (Step?, StepResult?) -> Unit
     var onSurveyFinish: (TaskResult, FinishReason) -> Unit
 
diff --git a/survey/src/main/java/com.quickbirdstudios.surveykit/survey/SurveyView.kt b/survey/src/main/java/com.quickbirdstudios.surveykit/survey/SurveyView.kt
index 5adb539..7465434 100644
--- a/survey/src/main/java/com.quickbirdstudios.surveykit/survey/SurveyView.kt
+++ b/survey/src/main/java/com.quickbirdstudios.surveykit/survey/SurveyView.kt
@@ -91,6 +91,8 @@ class SurveyView @JvmOverloads constructor(
 
     //region Overrides
 
+    override var onStepBegin: (Step?) -> Unit = { _ -> }
+
     override var onStepResult: (Step?, StepResult?) -> Unit = { _, _ -> }
 
     override var onSurveyFinish: (TaskResult, FinishReason) -> Unit = { _, _ -> }
@@ -121,6 +123,9 @@ class SurveyView @JvmOverloads constructor(
         val newStep = taskNavigator.nextStep(step, result) ?: return StepData(
             FinishReason.Completed
         )
+
+        onStepBegin(newStep)
+
         val newResult = presenter(
             Presenter.Transition.SlideFromRight, newStep, resultGatherer.retrieve(newStep.id)
         ).storeResult()
@@ -135,6 +140,9 @@ class SurveyView @JvmOverloads constructor(
             taskNavigator.previousStep(step) ?: return StepData(
                 FinishReason.Failed
             )
+
+        onStepBegin(previousStep)
+
         val newResult = presenter(
             Presenter.Transition.SlideFromLeft,
             previousStep,
@@ -150,6 +158,9 @@ class SurveyView @JvmOverloads constructor(
         val newStep = taskNavigator.nextStep(step) ?: return StepData(
             FinishReason.Completed
         )
+
+        onStepBegin(newStep)
+
         val newResult = presenter(
             Presenter.Transition.SlideFromRight, newStep, resultGatherer.retrieve(newStep.id)
         ).storeResult()