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DisableKeyboardInputTrait.kt
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DisableKeyboardInputTrait.kt
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/*
* Copyright (C) 2016 - Niklas Baudy, Ruben Gees, Mario Đanić and contributors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.vanniktech.emoji.traits
import android.view.View
import android.view.View.OnFocusChangeListener
import android.widget.EditText
import androidx.core.view.ViewCompat
import androidx.core.view.WindowInsetsCompat
import com.vanniktech.emoji.EmojiPopup
/**
* Disables the keyboard so that letters, digits etc can't be input.
* Instead only the EmojiPopup will be displayed.
*
* Note: This is using a OnFocusChangeListener. Don't overwrite it.
*/
class DisableKeyboardInputTrait(
private val emojiPopup: EmojiPopup,
) : EmojiTraitable {
override fun install(editText: EditText): EmojiTrait {
val forceEmojisOnlyFocusChangeListener = ForceEmojisOnlyFocusChangeListener(
delegate = editText.onFocusChangeListener,
emojiPopup = emojiPopup,
)
editText.onFocusChangeListener = forceEmojisOnlyFocusChangeListener
val isKeyboardOpen = ViewCompat.getRootWindowInsets(editText.rootView)?.isVisible(WindowInsetsCompat.Type.ime()) == true
if (editText.hasFocus() || isKeyboardOpen) {
forceEmojisOnlyFocusChangeListener.focus()
}
return object : EmojiTrait {
override fun uninstall() {
editText.onFocusChangeListener = forceEmojisOnlyFocusChangeListener.delegate
}
}
}
internal class ForceEmojisOnlyFocusChangeListener(
internal val delegate: OnFocusChangeListener?,
private val emojiPopup: EmojiPopup,
) : OnFocusChangeListener {
override fun onFocusChange(view: View, hasFocus: Boolean) {
if (hasFocus) {
emojiPopup.start()
emojiPopup.show()
} else {
emojiPopup.dismiss()
}
delegate?.onFocusChange(view, hasFocus)
}
internal fun focus() {
if (!emojiPopup.isShowing) {
emojiPopup.start()
emojiPopup.show()
}
}
}
}