/*
 * ImageToolbox is an image editor for android
 * Copyright (c) 2024 T8RIN (Malik Mukhametzyanov)
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 *
 * 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.
 *
 * You should have received a copy of the Apache License
 * along with this program.  If not, see <http://www.apache.org/licenses/LICENSE-2.0>.
 */

package com.t8rin.imagetoolbox.core.ui.widget.text

import androidx.compose.foundation.layout.WindowInsets
import androidx.compose.foundation.layout.ime
import androidx.compose.runtime.Composable
import androidx.compose.runtime.LaunchedEffect
import androidx.compose.runtime.State
import androidx.compose.runtime.getValue
import androidx.compose.runtime.rememberUpdatedState
import androidx.compose.ui.platform.LocalDensity
import androidx.compose.ui.platform.LocalFocusManager

@Composable
fun isKeyboardVisibleAsState(): State<Boolean> {
    val isImeVisible = WindowInsets.ime.getBottom(LocalDensity.current) > 0
    return rememberUpdatedState(isImeVisible)
}

@Composable
fun KeyboardFocusHandler() {
    val focus = LocalFocusManager.current
    val isKeyboardVisible by isKeyboardVisibleAsState()

    LaunchedEffect(isKeyboardVisible) {
        if (!isKeyboardVisible) focus.clearFocus()
    }
}