Simplify settings navigation and copy controls

app/src/main/java/se/ajpanton/notificationlog/SettingsFragment.kt

@@ -5,12 +5,18 @@ import android.content.ClipData
 import android.net.Uri
 import android.content.ComponentName
 import android.content.Intent
+import android.graphics.Color
+import android.graphics.drawable.ColorDrawable
 import android.provider.Settings
 import android.view.View
 import android.widget.ArrayAdapter
+import android.widget.CheckBox
+import android.widget.LinearLayout
+import android.widget.PopupWindow
 import androidx.fragment.app.Fragment
 import com.google.android.material.switchmaterial.SwitchMaterial
 import com.google.android.material.dialog.MaterialAlertDialogBuilder
+import com.google.android.material.color.MaterialColors
 import se.ajpanton.notificationlog.databinding.FragmentSettingsBinding
 import se.ajpanton.notificationlog.settings.LogField
 import se.ajpanton.notificationlog.settings.LogViewSettingsStore
@@ -122,48 +128,80 @@ class SettingsFragment : Fragment(R.layout.fragment_settings) {
     }
 
     private fun setupCopyControls() {
-        val labels = listOf("From") + LoggingType.entries.map { it.label() }
+        val labels = listOf("Source") + LoggingType.entries.map { it.label() }
         binding!!.copyFrom.adapter = ArrayAdapter(requireContext(), android.R.layout.simple_spinner_dropdown_item, labels)
         binding!!.copyFrom.onItemSelectedListener = object : android.widget.AdapterView.OnItemSelectedListener {
             override fun onNothingSelected(parent: android.widget.AdapterView<*>?) = Unit
             override fun onItemSelected(parent: android.widget.AdapterView<*>?, view: View?, position: Int, id: Long) {
                 selectedCopyTargets = emptySet()
                 binding!!.copyTo.isEnabled = position > 0
-                updateCopyButton()
+                binding!!.copyTo.text = "Destination"
+                updateCopyControls()
             }
         }
-        binding!!.copyTo.setOnClickListener { chooseCopyTargets(LoggingType.entries[binding!!.copyFrom.selectedItemPosition - 1]) }
+        binding!!.copyTo.setOnClickListener { showDestinationDropdown(LoggingType.entries[binding!!.copyFrom.selectedItemPosition - 1]) }
         binding!!.copyEventSettings.setOnClickListener {
             LoggingRuleStore(requireContext()).copy(LoggingType.entries[binding!!.copyFrom.selectedItemPosition - 1], selectedCopyTargets)
         }
     }
 
-    private fun chooseCopyTargets(source: LoggingType) {
+    private fun showDestinationDropdown(source: LoggingType) {
         val targets = LoggingType.entries.filterNot { it == source }
-        val checked = BooleanArray(targets.size) { targets[it] in selectedCopyTargets }
-        val dialog = MaterialAlertDialogBuilder(requireContext())
-            .setTitle("Copy ${source.label()} settings to")
-            .setMultiChoiceItems(targets.map { it.label() }.toTypedArray(), checked) { _, index, selected -> checked[index] = selected }
-            .setNegativeButton("Cancel", null)
-            .setNeutralButton("All", null)
-            .setPositiveButton("Done") { _, _ ->
-                selectedCopyTargets = targets.filterIndexed { index, _ -> checked[index] }.toSet()
-                updateCopyButton()
+        val popupContent = LinearLayout(requireContext()).apply {
+            orientation = LinearLayout.VERTICAL
+            setPadding(dp(8), dp(8), dp(8), dp(8))
+        }
+        val popup = PopupWindow(popupContent, binding!!.copyTo.width.coerceAtLeast(dp(200)), LinearLayout.LayoutParams.WRAP_CONTENT, true).apply {
+            isOutsideTouchable = true
+            elevation = dp(8).toFloat()
+            setBackgroundDrawable(ColorDrawable(MaterialColors.getColor(requireContext(), com.google.android.material.R.attr.colorSurface, Color.WHITE)))
+        }
+        val boxes = mutableListOf<CheckBox>()
+        popupContent.addView(android.widget.Button(requireContext()).apply {
+            text = "All"
+            setOnClickListener {
+                val selectAll = selectedCopyTargets.size != targets.size
+                selectedCopyTargets = if (selectAll) targets.toSet() else emptySet()
+                boxes.forEachIndexed { index, box -> box.isChecked = targets[index] in selectedCopyTargets }
+                updateCopyControls()
             }
-            .create()
-        dialog.setOnShowListener {
-            dialog.getButton(androidx.appcompat.app.AlertDialog.BUTTON_NEUTRAL).setOnClickListener {
-                val selectAll = checked.any { !it }
-                checked.indices.forEach { index ->
-                    checked[index] = selectAll
-                    dialog.listView.setItemChecked(index, selectAll)
+        })
+        popupContent.addView(View(requireContext()).apply {
+            layoutParams = LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, 1).apply {
+                setMargins(0, dp(4), 0, dp(4))
+            }
+            setBackgroundColor(0x33000000)
+        })
+        targets.forEach { target ->
+            val box = CheckBox(requireContext()).apply {
+                text = target.label()
+                isChecked = target in selectedCopyTargets
+                setOnCheckedChangeListener { _, checked ->
+                    selectedCopyTargets = selectedCopyTargets.toMutableSet().apply {
+                        if (checked) add(target) else remove(target)
+                    }
+                    updateCopyControls()
                 }
             }
+            boxes += box
+            popupContent.addView(box)
         }
-        dialog.show()
+        popup.showAsDropDown(binding!!.copyTo)
     }
 
-    private fun updateCopyButton() { binding?.copyEventSettings?.isEnabled = selectedCopyTargets.isNotEmpty() }
+    private fun updateCopyControls() {
+        val currentBinding = binding ?: return
+        val sourceChosen = currentBinding.copyFrom.selectedItemPosition > 0
+        currentBinding.copyTo.isEnabled = sourceChosen
+        currentBinding.copyTo.text = destinationLabel()
+        currentBinding.copyEventSettings.isEnabled = sourceChosen && selectedCopyTargets.isNotEmpty()
+    }
+
+    private fun destinationLabel(): String = when (selectedCopyTargets.size) {
+        0 -> "Destination"
+        1 -> selectedCopyTargets.first().label()
+        else -> "${selectedCopyTargets.sortedBy { it.ordinal }.first().label()}..."
+    }
 
     private fun isListenerEnabled(): Boolean = requireContext().getSystemService(android.app.NotificationManager::class.java)
         .isNotificationListenerAccessGranted(ComponentName(requireContext(), NotificationCaptureService::class.java))
@@ -229,5 +267,7 @@ class SettingsFragment : Fragment(R.layout.fragment_settings) {
 
     private fun LoggingType.label() = name.lowercase().replace('_', ' ').replaceFirstChar(Char::uppercase)
 
+    private fun dp(value: Int): Int = (value * resources.displayMetrics.density).toInt()
+
     private enum class ExportFormat(val extension: String) { CSV("csv"), FORMATTED("txt"), HTML_ZIP("zip") }
 }