e-ntfy-android/app/src/main/java/io/heckel/ntfy/AddFragment.kt
2021-10-27 22:32:30 -04:00

84 lines
3.8 KiB
Kotlin

package io.heckel.ntfy
import android.app.AlertDialog
import android.app.Dialog
import android.os.Bundle
import android.text.Editable
import android.text.TextWatcher
import android.view.View
import android.widget.CheckBox
import androidx.fragment.app.DialogFragment
import com.google.android.material.textfield.TextInputEditText
class AddFragment(private val listener: Listener) : DialogFragment() {
interface Listener {
fun onAddClicked(topic: String, baseUrl: String)
}
override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
return activity?.let {
// Build root view
val view = requireActivity().layoutInflater.inflate(R.layout.fragment_add, null)
val topicNameText = view.findViewById(R.id.add_dialog_topic_text) as TextInputEditText
val baseUrlText = view.findViewById(R.id.add_dialog_base_url_text) as TextInputEditText
val useAnotherServerCheckbox = view.findViewById(R.id.add_dialog_use_another_server_checkbox) as CheckBox
// Build dialog
val alert = AlertDialog.Builder(it)
.setView(view)
.setPositiveButton(R.string.add_dialog_button_subscribe) { _, _ ->
val topic = topicNameText.text.toString()
val baseUrl = if (useAnotherServerCheckbox.isChecked) {
baseUrlText.text.toString()
} else {
getString(R.string.add_dialog_base_url_default)
}
listener.onAddClicked(topic, baseUrl)
}
.setNegativeButton(R.string.add_dialog_button_cancel) { _, _ ->
dialog?.cancel()
}
.create()
// Add logic to disable "Subscribe" button on invalid input
alert.setOnShowListener {
val dialog = it as AlertDialog
val subscribeButton = dialog.getButton(AlertDialog.BUTTON_POSITIVE)
subscribeButton.isEnabled = false
val validateInput: () -> Unit = {
if (useAnotherServerCheckbox.isChecked) {
subscribeButton.isEnabled = topicNameText.text.toString().isNotBlank()
&& "[-_A-Za-z0-9]+".toRegex().matches(topicNameText.text.toString())
&& baseUrlText.text.toString().isNotBlank()
&& "^https?://.+".toRegex().matches(baseUrlText.text.toString())
} else {
subscribeButton.isEnabled = topicNameText.text.toString().isNotBlank()
&& "[-_A-Za-z0-9]+".toRegex().matches(topicNameText.text.toString())
}
}
val textWatcher = object : TextWatcher {
override fun afterTextChanged(s: Editable?) {
validateInput()
}
override fun onTextChanged(s: CharSequence?, start: Int, before: Int, count: Int) {
// Nothing
}
override fun beforeTextChanged(s: CharSequence?, start: Int, count: Int, after: Int) {
// Nothing
}
}
topicNameText.addTextChangedListener(textWatcher)
baseUrlText.addTextChangedListener(textWatcher)
useAnotherServerCheckbox.setOnCheckedChangeListener { buttonView, isChecked ->
if (isChecked) baseUrlText.visibility = View.VISIBLE
else baseUrlText.visibility = View.GONE
validateInput()
}
}
alert
} ?: throw IllegalStateException("Activity cannot be null")
}
}