92 lines
3.3 KiB
Kotlin
92 lines
3.3 KiB
Kotlin
/* Copyright 2019 Tusky Contributors
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*
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* This file is a part of Tusky.
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*
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* This program is free software; you can redistribute it and/or modify it under the terms of the
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* GNU General Public License as published by the Free Software Foundation; either version 3 of the
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* License, or (at your option) any later version.
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*
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* Tusky is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
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* the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
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* Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with Tusky; if not,
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* see <http://www.gnu.org/licenses>. */
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package com.keylesspalace.tusky.adapter
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import android.text.InputFilter
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import android.view.LayoutInflater
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import android.view.View
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import android.view.ViewGroup
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import android.widget.ImageButton
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import androidx.recyclerview.widget.RecyclerView
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import com.google.android.material.textfield.TextInputEditText
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import com.google.android.material.textfield.TextInputLayout
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import com.keylesspalace.tusky.R
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import com.keylesspalace.tusky.util.onTextChanged
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import com.keylesspalace.tusky.util.visible
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class AddPollOptionsAdapter(
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private var options: MutableList<String>,
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private val maxOptionLength: Int,
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private val onOptionRemoved: (Boolean) -> Unit,
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private val onOptionChanged: (Boolean) -> Unit
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): RecyclerView.Adapter<ViewHolder>() {
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val pollOptions: List<String>
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get() = options.toList()
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fun addChoice() {
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options.add("")
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notifyItemInserted(options.size - 1)
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}
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override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
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val holder = ViewHolder(LayoutInflater.from(parent.context).inflate(R.layout.item_add_poll_option, parent, false))
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holder.editText.filters = arrayOf(InputFilter.LengthFilter(maxOptionLength))
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holder.editText.onTextChanged { s, _, _, _ ->
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val pos = holder.adapterPosition
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if(pos != RecyclerView.NO_POSITION) {
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options[pos] = s.toString()
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onOptionChanged(validateInput())
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}
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}
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return holder
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}
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override fun getItemCount() = options.size
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override fun onBindViewHolder(holder: ViewHolder, position: Int) {
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holder.editText.setText(options[position])
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holder.textInputLayout.hint = holder.textInputLayout.context.getString(R.string.poll_new_choice_hint, position + 1)
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holder.deleteButton.visible(position > 1, View.INVISIBLE)
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holder.deleteButton.setOnClickListener {
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holder.editText.clearFocus()
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options.removeAt(holder.adapterPosition)
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notifyItemRemoved(holder.adapterPosition)
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onOptionRemoved(validateInput())
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}
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}
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private fun validateInput(): Boolean {
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if (options.contains("") || options.distinct().size != options.size) {
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return false
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}
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return true
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}
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}
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class ViewHolder(itemView: View): RecyclerView.ViewHolder(itemView) {
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val textInputLayout: TextInputLayout = itemView.findViewById(R.id.optionTextInputLayout)
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val editText: TextInputEditText = itemView.findViewById(R.id.optionEditText)
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val deleteButton: ImageButton = itemView.findViewById(R.id.deleteButton)
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} |