Tusky-App-Android/app/src/main/java/com/keylesspalace/tusky/util/ViewExtensions.kt

/* Copyright 2017 Andrew Dawson
 *
 * This file is a part of Tusky.
 *
 * This program is free software; you can redistribute it and/or modify it under the terms of the
 * GNU General Public License as published by the Free Software Foundation; either version 3 of the
 * License, or (at your option) any later version.
 *
 * Tusky is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
 * the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
 * Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along with Tusky; if not,
 * see <http://www.gnu.org/licenses>.
 */

package com.keylesspalace.tusky.util

import android.text.Editable
import android.text.TextWatcher
import android.view.View
import android.widget.EditText

fun View.show() {
    this.visibility = View.VISIBLE
}

fun View.hide() {
    this.visibility = View.GONE
}

fun View.visible(visible: Boolean, or: Int = View.GONE) {
    this.visibility = if (visible) View.VISIBLE else or
}

open class DefaultTextWatcher : TextWatcher {
    override fun afterTextChanged(s: Editable?) {
    }

    override fun beforeTextChanged(s: CharSequence?, start: Int, count: Int, after: Int) {
    }

    override fun onTextChanged(s: CharSequence?, start: Int, before: Int, count: Int) {
    }
}

inline fun EditText.onTextChanged(
        crossinline callback: (s: CharSequence?, start: Int, before: Int, count: Int) -> Unit) {
    addTextChangedListener(object : DefaultTextWatcher() {
        override fun onTextChanged(s: CharSequence?, start: Int, before: Int, count: Int) {
            callback(s, start, before, count)
        }
    })
}