From b2c51f7be17e0cbb413fbbd1a3c65e9084f3b65f Mon Sep 17 00:00:00 2001
From: Avior <github@avior.me>
Date: Wed, 8 Feb 2023 17:18:48 +0100
Subject: [PATCH] fix: crash while clicking on an empty chart (#50)

---
 build.gradle.kts                                    | 9 +++------
 gradle/wrapper/gradle-wrapper.properties            | 2 +-
 library/src/main/java/com/dzeio/charts/ChartView.kt | 6 ++++++
 3 files changed, 10 insertions(+), 7 deletions(-)

diff --git a/build.gradle.kts b/build.gradle.kts
index 552a981..5652e57 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -4,16 +4,13 @@ buildscript {
         mavenCentral()
     }
     dependencies {
-        classpath("com.android.tools.build:gradle:7.4.0")
-
-        // NOTE: Do not place your application dependencies here; they belong
-        // in the individual module build.gradle files
+        classpath("com.android.tools.build:gradle:7.4.1")
     }
 }
 
 plugins {
-    id("com.android.application") version "7.4.0" apply false
-    id("com.android.library") version "7.4.0" apply false
+    id("com.android.application") version "7.4.1" apply false
+    id("com.android.library") version "7.4.1" apply false
     id("org.jetbrains.kotlin.android") version "1.7.0" apply false
 }
 
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 4cbbcaa..959b705 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
 #Sun Aug 07 22:38:24 CEST 2022
 distributionBase=GRADLE_USER_HOME
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.5.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.0-rc-1-bin.zip
 distributionPath=wrapper/dists
 zipStorePath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
diff --git a/library/src/main/java/com/dzeio/charts/ChartView.kt b/library/src/main/java/com/dzeio/charts/ChartView.kt
index ca295c1..4c7c1bf 100644
--- a/library/src/main/java/com/dzeio/charts/ChartView.kt
+++ b/library/src/main/java/com/dzeio/charts/ChartView.kt
@@ -42,6 +42,9 @@ class ChartView @JvmOverloads constructor(context: Context?, attrs: AttributeSet
         var lastMovementX = 0.0
         var lastMovementY = 0f
         setOnChartMoved { movementX, movementY ->
+            if (getDataset().isEmpty()) {
+                return@setOnChartMoved
+            }
             if (xAxis.scrollEnabled) {
                 xAxis.x += (movementX - lastMovementX) * xAxis.getDataWidth() / width
                 lastMovementX = movementX.toDouble()
@@ -59,6 +62,9 @@ class ChartView @JvmOverloads constructor(context: Context?, attrs: AttributeSet
             refresh()
         }
         setOnChartClick { x, y ->
+            if (getDataset().isEmpty()) {
+                return@setOnChartClick
+            }
             // Log.d("Chart clicked at", "$x, $y")
             val dataset = series.map { it.getDisplayedEntries() }.reduce { acc, entries ->
                 acc.addAll(entries)