Merge pull request #20394 from wordpress-mobile/issue/20363-fix-accessibility-issue-on-traffic-chart

Fix accessibility issue on the traffic chart

Author: ravishanker

WordPress/src/main/java/org/wordpress/android/ui/stats/refresh/lists/sections/BlockListItem.kt

@@ -270,9 +270,6 @@ sealed class BlockListItem(val type: Type) {
 
     data class TrafficBarChartItem(
         val entries: List<Bar>,
-        val overlappingEntries: List<Bar>? = null,
-        val selectedItem: String? = null,
-        val onBarSelected: ((period: String?) -> Unit)? = null,
         val onBarChartDrawn: ((visibleBarCount: Int) -> Unit)? = null,
         val entryContentDescriptions: List<String>
     ) : BlockListItem(TRAFFIC_BAR_CHART) {

WordPress/src/main/java/org/wordpress/android/ui/stats/refresh/lists/sections/traffic/TrafficBarChartViewHolder.kt

@@ -41,24 +41,8 @@ class TrafficBarChartViewHolder(parent: ViewGroup) : BlockListItemViewHolder(
             val barCount = chart.draw(item)
             if (hasData(item.entries)) {
                 chart.post {
-                    val accessibilityEvent = object : BarChartAccessibilityHelper.BarChartAccessibilityEvent {
-                        override fun onHighlight(
-                            entry: BarEntry,
-                            index: Int
-                        ) {
-                            val value = entry.data as? String
-                            value?.let {
-                                item.onBarSelected?.invoke(it)
-                            }
-                        }
-                    }
-
                     val cutContentDescriptions = takeEntriesWithinGraphWidth(barCount, item.entryContentDescriptions)
-                    accessibilityHelper = BarChartAccessibilityHelper(
-                        chart,
-                        contentDescriptions = cutContentDescriptions,
-                        accessibilityEvent = accessibilityEvent
-                    )
+                    accessibilityHelper = BarChartAccessibilityHelper(chart, cutContentDescriptions)
 
                     ViewCompat.setAccessibilityDelegate(chart, accessibilityHelper)
                 }

WordPress/src/main/java/org/wordpress/android/ui/stats/refresh/lists/sections/traffic/TrafficOverviewMapper.kt

@@ -82,10 +82,8 @@ class TrafficOverviewMapper @Inject constructor(
     fun buildChart(
         dates: List<VisitsAndViewsModel.PeriodData>,
         statsGranularity: StatsGranularity,
-        onBarSelected: (String?) -> Unit,
         onBarChartDrawn: (visibleBarCount: Int) -> Unit,
-        selectedType: Int,
-        selectedItemPeriod: String
+        selectedType: Int
     ): List<BlockListItem> {
         val chartItems = dates.map {
             val value = when (SelectedType.valueOf(selectedType)) {
@@ -116,15 +114,7 @@ class TrafficOverviewMapper @Inject constructor(
             chartItems
         )
 
-        result.add(
-            BlockListItem.TrafficBarChartItem(
-                chartItems,
-                selectedItem = selectedItemPeriod,
-                onBarSelected = onBarSelected,
-                onBarChartDrawn = onBarChartDrawn,
-                entryContentDescriptions = contentDescriptions
-            )
-        )
+        result.add(BlockListItem.TrafficBarChartItem(chartItems, onBarChartDrawn, contentDescriptions))
         return result
     }
 }

WordPress/src/main/java/org/wordpress/android/ui/stats/refresh/lists/sections/traffic/TrafficOverviewUseCase.kt

@@ -19,7 +19,6 @@ import org.wordpress.android.ui.stats.refresh.lists.widget.WidgetUpdater
 import org.wordpress.android.ui.stats.refresh.utils.StatsDateFormatter
 import org.wordpress.android.ui.stats.refresh.utils.StatsSiteProvider
 import org.wordpress.android.ui.stats.refresh.utils.StatsUtils
-import org.wordpress.android.ui.stats.refresh.utils.trackGranular
 import org.wordpress.android.ui.stats.refresh.utils.trackWithGranularity
 import org.wordpress.android.util.AppLog
 import org.wordpress.android.util.analytics.AnalyticsTrackerWrapper
@@ -269,14 +268,7 @@ class TrafficOverviewUseCase(
         selectedItem: VisitsAndViewsModel.PeriodData
     ) {
         items.addAll(
-            trafficOverviewMapper.buildChart(
-                dates,
-                lowerGranularity,
-                this::onBarSelected,
-                this::onBarChartDrawn,
-                uiState.selectedPosition,
-                selectedItem.period
-            )
+            trafficOverviewMapper.buildChart(dates, lowerGranularity, this::onBarChartDrawn, uiState.selectedPosition)
         )
         items.add(
             trafficOverviewMapper.buildColumns(
@@ -287,20 +279,6 @@ class TrafficOverviewUseCase(
         )
     }
 
-    private fun onBarSelected(period: String?) {
-        analyticsTracker.trackGranular(
-            AnalyticsTracker.Stat.STATS_OVERVIEW_BAR_CHART_TAPPED,
-            lowerGranularity
-        )
-        if (period != null && period != "empty") {
-            val selectedDate = statsDateFormatter.parseStatsDate(lowerGranularity, period)
-            selectedDateProvider.selectDate(
-                selectedDate,
-                lowerGranularity
-            )
-        }
-    }
-
     @Suppress("MagicNumber")
     private fun onColumnSelected(position: Int) {
         val event = when (position) {

WordPress/src/main/java/org/wordpress/android/ui/stats/refresh/utils/BarChartAccessibilityHelper.kt

@@ -12,7 +12,7 @@ import com.github.mikephil.charting.interfaces.datasets.IBarDataSet
 class BarChartAccessibilityHelper(
     private val barChart: BarChart,
     private val contentDescriptions: List<String>,
-    private val accessibilityEvent: BarChartAccessibilityEvent
+    private val accessibilityEvent: BarChartAccessibilityEvent? = null
 ) : ExploreByTouchHelper(barChart) {
     private val dataSet: IBarDataSet = barChart.data.dataSets.first()
 
@@ -51,7 +51,7 @@ class BarChartAccessibilityHelper(
         when (action) {
             AccessibilityNodeInfoCompat.ACTION_CLICK -> {
                 val entry = dataSet.getEntryForIndex(virtualViewId)
-                accessibilityEvent.onHighlight(entry, virtualViewId)
+                accessibilityEvent?.onHighlight(entry, virtualViewId)
                 return true
             }
         }
@@ -74,7 +74,7 @@ class BarChartAccessibilityHelper(
             }
         }
 
-        node.addAction(AccessibilityActionCompat.ACTION_CLICK)
+        accessibilityEvent?.let { node.addAction(AccessibilityActionCompat.ACTION_CLICK) }
         val entryRectF = barChart.getBarBounds(dataSet.getEntryForIndex(virtualViewId))
         val entryRect = Rect()
         entryRectF.round(entryRect)